diff --git a/keyboards/yushakobo/ergo68/info.json b/keyboards/yushakobo/ergo68/info.json
new file mode 100644
index 0000000000..c4a143cb73
--- /dev/null
+++ b/keyboards/yushakobo/ergo68/info.json
@@ -0,0 +1,222 @@
+{
+ "manufacturer": "yushakobo",
+ "keyboard_name": "ergo68",
+ "maintainer": "yushakobo",
+ "features": {
+ "bootmagic": true,
+ "extrakey": true,
+ "mousekey": true,
+ "rgb_matrix": true,
+ },
+ "development_board": "promicro",
+ "diode_direction": "COL2ROW",
+ "matrix_pins": {
+ "cols": ["F4", "F5", "F6", "F7", "B1", "B3", "B2"],
+ "rows": ["D4", "C6", "D7", "E6", "B4"]
+ },
+ "url": "",
+ "usb": {
+ "vid": "0x3265",
+ "pid": "0x0011",
+ "device_version": "1.0.0"
+ },
+ "ws2812": {
+ "pin": "D3"
+ },
+ "rgb_matrix": {
+ "driver": "ws2812",
+ "layout": [
+ {"x": 0, "y": 0, "flags": 8},
+ {"x": 11, "y": 0, "flags": 8},
+ {"x": 21, "y": 0, "flags": 8},
+ {"matrix": [0, 0], "x": 0, "y": 10, "flags": 1},
+ {"matrix": [0, 1], "x": 14, "y": 10, "flags": 4},
+ {"matrix": [0, 2], "x": 28, "y": 7, "flags": 4},
+ {"matrix": [0, 3], "x": 42, "y": 6, "flags": 4},
+ {"matrix": [0, 4], "x": 56, "y": 7, "flags": 4},
+ {"matrix": [0, 5], "x": 70, "y": 9, "flags": 4},
+ {"matrix": [1, 6], "x": 84, "y": 15, "flags": 4},
+ {"matrix": [1, 5], "x": 70, "y": 20, "flags": 4},
+ {"matrix": [1, 4], "x": 56, "y": 19, "flags": 4},
+ {"matrix": [1, 3], "x": 42, "y": 17, "flags": 4},
+ {"matrix": [1, 2], "x": 28, "y": 19, "flags": 4},
+ {"matrix": [1, 1], "x": 14, "y": 22, "flags": 4},
+ {"matrix": [1, 0], "x": 0, "y": 22, "flags": 1},
+ {"matrix": [2, 0], "x": 0, "y": 34, "flags": 1},
+ {"matrix": [2, 1], "x": 14, "y": 34, "flags": 4},
+ {"matrix": [2, 2], "x": 28, "y": 31, "flags": 4},
+ {"matrix": [2, 3], "x": 42, "y": 29, "flags": 4},
+ {"matrix": [2, 4], "x": 56, "y": 31, "flags": 4},
+ {"matrix": [2, 5], "x": 70, "y": 32, "flags": 4},
+ {"matrix": [2, 6], "x": 84, "y": 26, "flags": 4},
+ {"matrix": [3, 6], "x": 84, "y": 38, "flags": 4},
+ {"matrix": [3, 5], "x": 70, "y": 44, "flags": 4},
+ {"matrix": [3, 4], "x": 56, "y": 42, "flags": 4},
+ {"matrix": [3, 3], "x": 42, "y": 41, "flags": 4},
+ {"matrix": [3, 2], "x": 28, "y": 42, "flags": 4},
+ {"matrix": [3, 1], "x": 14, "y": 45, "flags": 4},
+ {"matrix": [3, 0], "x": 0, "y": 45, "flags": 1},
+ {"matrix": [4, 0], "x": 0, "y": 57, "flags": 1},
+ {"matrix": [4, 1], "x": 14, "y": 57, "flags": 1},
+ {"matrix": [4, 2], "x": 28, "y": 54, "flags": 1},
+ {"matrix": [4, 3], "x": 49, "y": 54, "flags": 1},
+ {"matrix": [4, 4], "x": 63, "y": 55, "flags": 1},
+ {"matrix": [4, 5], "x": 81, "y": 58, "flags": 1},
+ {"matrix": [4, 6], "x": 95, "y": 64, "flags": 1},
+ {"x": 224, "y": 0, "flags": 8},
+ {"x": 214, "y": 0, "flags": 8},
+ {"x": 203, "y": 0, "flags": 8},
+ {"matrix": [5, 0], "x": 224, "y": 10, "flags": 1},
+ {"matrix": [5, 1], "x": 210, "y": 10, "flags": 4},
+ {"matrix": [5, 2], "x": 196, "y": 7, "flags": 4},
+ {"matrix": [5, 3], "x": 182, "y": 6, "flags": 4},
+ {"matrix": [5, 4], "x": 168, "y": 7, "flags": 4},
+ {"matrix": [5, 5], "x": 154, "y": 9, "flags": 4},
+ {"matrix": [6, 6], "x": 140, "y": 15, "flags": 4},
+ {"matrix": [6, 5], "x": 154, "y": 20, "flags": 4},
+ {"matrix": [6, 4], "x": 168, "y": 19, "flags": 4},
+ {"matrix": [6, 3], "x": 182, "y": 17, "flags": 4},
+ {"matrix": [6, 2], "x": 196, "y": 19, "flags": 4},
+ {"matrix": [6, 1], "x": 210, "y": 22, "flags": 4},
+ {"matrix": [6, 0], "x": 224, "y": 22, "flags": 1},
+ {"matrix": [7, 0], "x": 224, "y": 34, "flags": 1},
+ {"matrix": [7, 1], "x": 210, "y": 34, "flags": 4},
+ {"matrix": [7, 2], "x": 196, "y": 31, "flags": 4},
+ {"matrix": [7, 3], "x": 182, "y": 29, "flags": 4},
+ {"matrix": [7, 4], "x": 168, "y": 31, "flags": 4},
+ {"matrix": [7, 5], "x": 154, "y": 32, "flags": 4},
+ {"matrix": [7, 6], "x": 140, "y": 26, "flags": 4},
+ {"matrix": [8, 6], "x": 140, "y": 38, "flags": 4},
+ {"matrix": [8, 5], "x": 154, "y": 44, "flags": 4},
+ {"matrix": [8, 4], "x": 168, "y": 42, "flags": 4},
+ {"matrix": [8, 3], "x": 182, "y": 41, "flags": 4},
+ {"matrix": [8, 2], "x": 196, "y": 42, "flags": 4},
+ {"matrix": [8, 1], "x": 210, "y": 45, "flags": 4},
+ {"matrix": [8, 0], "x": 224, "y": 45, "flags": 1},
+ {"matrix": [9, 0], "x": 224, "y": 57, "flags": 1},
+ {"matrix": [9, 1], "x": 210, "y": 57, "flags": 1},
+ {"matrix": [9, 2], "x": 196, "y": 54, "flags": 1},
+ {"matrix": [9, 3], "x": 175, "y": 54, "flags": 1},
+ {"matrix": [9, 4], "x": 161, "y": 55, "flags": 1},
+ {"matrix": [9, 5], "x": 144, "y": 58, "flags": 1},
+ {"matrix": [9, 6], "x": 130, "y": 64, "flags": 1}
+ ],
+ "max_brightness": 100,
+ "sleep": true,
+ "split_count": [37, 37],
+ "animations":{
+ "alphas_mods": true,
+ "breathing": true,
+ "cycle_all": true,
+ "rainbow_moving_chevron": true,
+ "cycle_spiral": true,
+ "dual_beacon": true,
+ "rainbow_beacon": true,
+ "raindrops": true,
+ "solid_reactive": true,
+ "splash": true,
+ "solid_splash": true,
+ },
+ "default":{
+ "val": 50
+ },
+ "led_process_limit":16
+ },
+ "split": {
+ "enabled": true,
+ "handedness": {
+ "pin": "B6"
+ },
+ "transport": {
+ "sync": {
+ "indicators": true,
+ "layer_state": true,
+ "matrix_state": true
+ }
+ },
+ "soft_serial_pin": "D0"
+ },
+ "layouts": {
+ "LAYOUT": {
+ "layout": [
+ {"matrix":[0,0], "x":0, "y":0.6},
+ {"matrix":[0,1], "x":1, "y":0.6},
+ {"matrix":[0,2], "x":2, "y":0.2},
+ {"matrix":[0,3], "x":3, "y":0},
+ {"matrix":[0,4], "x":4, "y":0.2},
+ {"matrix":[0,5], "x":5, "y":0.4},
+
+ {"matrix":[5,5], "x":10, "y":0.4},
+ {"matrix":[5,4], "x":11, "y":0.2},
+ {"matrix":[5,3], "x":12, "y":0},
+ {"matrix":[5,2], "x":13, "y":0.2},
+ {"matrix":[5,1], "x":14, "y":0.6},
+ {"matrix":[5,0], "x":15, "y":0.6},
+
+ {"matrix":[1,0], "x":0, "y":1.6},
+ {"matrix":[1,1], "x":1, "y":1.6},
+ {"matrix":[1,2], "x":2, "y":1.2},
+ {"matrix":[1,3], "x":3, "y":1},
+ {"matrix":[1,4], "x":4, "y":1.2},
+ {"matrix":[1,5], "x":5, "y":1.4},
+ {"matrix":[1,6], "x":6, "y":0.8},
+
+ {"matrix":[6,6], "x":9, "y":0.8},
+ {"matrix":[6,5], "x":10, "y":1.4},
+ {"matrix":[6,4], "x":11, "y":1.2},
+ {"matrix":[6,3], "x":12, "y":1},
+ {"matrix":[6,2], "x":13, "y":1.2},
+ {"matrix":[6,1], "x":14, "y":1.6},
+ {"matrix":[6,0], "x":15, "y":1.6},
+
+ {"matrix":[2,0], "x":0, "y":2.6},
+ {"matrix":[2,1], "x":1, "y":2.6},
+ {"matrix":[2,2], "x":2, "y":2.2},
+ {"matrix":[2,3], "x":3, "y":2},
+ {"matrix":[2,4], "x":4, "y":2.2},
+ {"matrix":[2,5], "x":5, "y":2.4},
+ {"matrix":[2,6], "x":6, "y":1.8},
+
+ {"matrix":[7,6], "x":9, "y":1.8},
+ {"matrix":[7,5], "x":10, "y":2.4},
+ {"matrix":[7,4], "x":11, "y":2.2},
+ {"matrix":[7,3], "x":12, "y":2},
+ {"matrix":[7,2], "x":13, "y":2.2},
+ {"matrix":[7,1], "x":14, "y":2.6},
+ {"matrix":[7,0], "x":15, "y":2.6},
+
+ {"matrix":[3,0], "x":0, "y":3.6},
+ {"matrix":[3,1], "x":1, "y":3.6},
+ {"matrix":[3,2], "x":2, "y":3.2},
+ {"matrix":[3,3], "x":3, "y":3},
+ {"matrix":[3,4], "x":4, "y":3.2},
+ {"matrix":[3,5], "x":5, "y":3.4},
+ {"matrix":[3,6], "x":6, "y":2.8},
+
+ {"matrix":[8,6], "x":9, "y":2.8},
+ {"matrix":[8,5], "x":10, "y":3.4},
+ {"matrix":[8,4], "x":11, "y":3.2},
+ {"matrix":[8,3], "x":12, "y":3},
+ {"matrix":[8,2], "x":13, "y":3.2},
+ {"matrix":[8,1], "x":14, "y":3.6},
+ {"matrix":[8,0], "x":15, "y":3.6},
+
+ {"matrix":[4,0], "x":0, "y":4.6},
+ {"matrix":[4,1], "x":1, "y":4.6},
+ {"matrix":[4,2], "x":2, "y":4.2},
+ {"matrix":[4,3], "x":3.5, "y":4.2},
+ {"matrix":[4,4], "x":4.5, "y":4.4},
+ {"matrix":[4,5], "x":5.5, "y":4.4, "h": 2},
+ {"matrix":[4,6], "x":6.5, "y":4.6, "h": 2},
+
+ {"matrix":[9,6], "x":8.5, "y":4.6, "h": 2},
+ {"matrix":[9,5], "x":9.5, "y":4.4, "h": 2},
+ {"matrix":[9,4], "x":10.5, "y":4.4},
+ {"matrix":[9,3], "x":11.5, "y":4.2},
+ {"matrix":[9,2], "x":13, "y":4.2},
+ {"matrix":[9,1], "x":14, "y":4.6},
+ {"matrix":[9,0], "x":15, "y":4.6}
+ ]
+ }
+ }
+}
diff --git a/keyboards/yushakobo/ergo68/keymaps/default/keymap.c b/keyboards/yushakobo/ergo68/keymaps/default/keymap.c
new file mode 100644
index 0000000000..57f4109502
--- /dev/null
+++ b/keyboards/yushakobo/ergo68/keymaps/default/keymap.c
@@ -0,0 +1,71 @@
+/* Copyright 2023 yushakobo
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT(
+ KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_PSCR,
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_LBRC, KC_RBRC, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSLS,
+ KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_MINS, KC_EQL, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_DEL, KC_BSPC, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT,
+ KC_LCTL,KC_LGUI,KC_LALT, MO(1), KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_RALT, KC_APP, KC_LCTL
+ ),
+ [1] = LAYOUT(
+ QK_BOOT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+ )
+};
+
+bool rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
+ // caps lock cyan
+ if (host_keyboard_led_state().caps_lock) {
+ RGB_MATRIX_INDICATOR_SET_COLOR(0, 0, 0, 128);
+ } else {
+ RGB_MATRIX_INDICATOR_SET_COLOR(0, 0, 0, 0);
+ }
+
+ // num lock cyan
+ if (host_keyboard_led_state().num_lock) {
+ RGB_MATRIX_INDICATOR_SET_COLOR(1, 0, 0, 128);
+ } else {
+ RGB_MATRIX_INDICATOR_SET_COLOR(1, 0, 0, 0);
+ }
+
+ // scroll lock cyan
+ if (host_keyboard_led_state().scroll_lock) {
+ RGB_MATRIX_INDICATOR_SET_COLOR(2, 0, 0, 128);
+ } else {
+ RGB_MATRIX_INDICATOR_SET_COLOR(2, 0, 0, 0);
+ }
+
+ // layer state
+ switch (get_highest_layer(layer_state)) {
+ case 1:
+ RGB_MATRIX_INDICATOR_SET_COLOR(37, 0, 0, 128);
+ break;
+ case 2:
+ RGB_MATRIX_INDICATOR_SET_COLOR(38, 0, 0, 128);
+ break;
+ case 3:
+ RGB_MATRIX_INDICATOR_SET_COLOR(39, 0, 0, 128);
+ break;
+ }
+ return false;
+}
diff --git a/keyboards/yushakobo/ergo68/keymaps/via/keymap.c b/keyboards/yushakobo/ergo68/keymaps/via/keymap.c
new file mode 100644
index 0000000000..57f4109502
--- /dev/null
+++ b/keyboards/yushakobo/ergo68/keymaps/via/keymap.c
@@ -0,0 +1,71 @@
+/* Copyright 2023 yushakobo
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT(
+ KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_PSCR,
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_LBRC, KC_RBRC, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSLS,
+ KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_MINS, KC_EQL, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_DEL, KC_BSPC, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT,
+ KC_LCTL,KC_LGUI,KC_LALT, MO(1), KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_RALT, KC_APP, KC_LCTL
+ ),
+ [1] = LAYOUT(
+ QK_BOOT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+ )
+};
+
+bool rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
+ // caps lock cyan
+ if (host_keyboard_led_state().caps_lock) {
+ RGB_MATRIX_INDICATOR_SET_COLOR(0, 0, 0, 128);
+ } else {
+ RGB_MATRIX_INDICATOR_SET_COLOR(0, 0, 0, 0);
+ }
+
+ // num lock cyan
+ if (host_keyboard_led_state().num_lock) {
+ RGB_MATRIX_INDICATOR_SET_COLOR(1, 0, 0, 128);
+ } else {
+ RGB_MATRIX_INDICATOR_SET_COLOR(1, 0, 0, 0);
+ }
+
+ // scroll lock cyan
+ if (host_keyboard_led_state().scroll_lock) {
+ RGB_MATRIX_INDICATOR_SET_COLOR(2, 0, 0, 128);
+ } else {
+ RGB_MATRIX_INDICATOR_SET_COLOR(2, 0, 0, 0);
+ }
+
+ // layer state
+ switch (get_highest_layer(layer_state)) {
+ case 1:
+ RGB_MATRIX_INDICATOR_SET_COLOR(37, 0, 0, 128);
+ break;
+ case 2:
+ RGB_MATRIX_INDICATOR_SET_COLOR(38, 0, 0, 128);
+ break;
+ case 3:
+ RGB_MATRIX_INDICATOR_SET_COLOR(39, 0, 0, 128);
+ break;
+ }
+ return false;
+}
diff --git a/keyboards/yushakobo/ergo68/keymaps/via/rules.mk b/keyboards/yushakobo/ergo68/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/yushakobo/ergo68/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/yushakobo/ergo68/readme.md b/keyboards/yushakobo/ergo68/readme.md
new file mode 100644
index 0000000000..863c747f77
--- /dev/null
+++ b/keyboards/yushakobo/ergo68/readme.md
@@ -0,0 +1,27 @@
+# ergo68
+
+![ergo68](https://i.imgur.com/ucr11Mgh.jpg)
+
+This is 68 keys Column-staggered Split keyboard.
+
+* Keyboard Maintainer: [yushakobo](https://github.com/yushakobo)
+* Hardware Supported: ergo68 PCB, Pro Micro
+* Hardware Availability: [yushakobo shop](https://shop.yushakobo.jp)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make yushakobo/ergo68:default
+
+Flashing example for this keyboard:
+
+ make yushakobo/ergo68:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
\ No newline at end of file
diff --git a/keyboards/yushakobo/ergo68/rules.mk b/keyboards/yushakobo/ergo68/rules.mk
new file mode 100644
index 0000000000..6e7633bfe0
--- /dev/null
+++ b/keyboards/yushakobo/ergo68/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank