diff --git a/TODO.txt b/TODO.txt
index c748989cc..be56734d8 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -92,7 +92,7 @@
 * make names bigger DONE 9/3/2024
 * boats leave trails DONE 9/3/2024
 * send boat even if touching DONE 9/4/2024
-* when attacking by boat, attack execution only starts from boat pixel
+* when attacking by boat, attack execution only starts from boat pixel DONE 9/4/2024
 * directed expansion
 * more random names for game id & client id
 * Make fake humans
diff --git a/src/client/ClientGame.ts b/src/client/ClientGame.ts
index 56434269c..86571536a 100644
--- a/src/client/ClientGame.ts
+++ b/src/client/ClientGame.ts
@@ -286,6 +286,8 @@ export class ClientGame {
             attackerID: this.myPlayer.id(),
             targetID: targetID,
             troops: troops,
+            sourceX: null,
+            sourceY: null,
             targetX: cell.x,
             targetY: cell.y
         })
diff --git a/src/core/Schemas.ts b/src/core/Schemas.ts
index 686c867cf..3017c50cf 100644
--- a/src/core/Schemas.ts
+++ b/src/core/Schemas.ts
@@ -24,6 +24,7 @@ export type ClientIntentMessage = z.infer<typeof ClientIntentMessageSchema>
 export type ClientJoinMessage = z.infer<typeof ClientJoinMessageSchema>
 export type ClientLeaveMessage = z.infer<typeof ClientLeaveMessageSchema>
 
+// TODO: create Cell schema
 
 export interface Lobby {
     id: string;
@@ -42,8 +43,10 @@ export const AttackIntentSchema = BaseIntentSchema.extend({
     attackerID: z.string(),
     targetID: z.string().nullable(),
     troops: z.number(),
-    targetX: z.number(),
-    targetY: z.number()
+    sourceX: z.number().nullable(),
+    sourceY: z.number().nullable(),
+    targetX: z.number().nullable(),
+    targetY: z.number().nullable()
 });
 
 
diff --git a/src/core/configuration/DevConfig.ts b/src/core/configuration/DevConfig.ts
index 8bf624c26..f46b925f4 100644
--- a/src/core/configuration/DevConfig.ts
+++ b/src/core/configuration/DevConfig.ts
@@ -28,7 +28,7 @@ export const devConfig = new class extends DefaultConfig {
 
     troopAdditionRate(player: Player): number {
         if (player.isBot()) {
-            return 10000
+            return 100000
         } else {
             return 100000
         }
diff --git a/src/core/execution/AttackExecution.ts b/src/core/execution/AttackExecution.ts
index 8945bd1ef..6545e4050 100644
--- a/src/core/execution/AttackExecution.ts
+++ b/src/core/execution/AttackExecution.ts
@@ -17,6 +17,7 @@ export class AttackExecution implements Execution {
         private troops: number,
         private _ownerID: PlayerID,
         private targetID: PlayerID | null,
+        private sourceCell: Cell | null,
         private targetCell: Cell | null,
     ) { }
 
@@ -54,16 +55,18 @@ export class AttackExecution implements Execution {
                     }
                 }
                 // Existing attack on same target, add troops
-                if (otherAttack._owner == this._owner && otherAttack.targetID == this.targetID) {
+                if (otherAttack._owner == this._owner && otherAttack.targetID == this.targetID && this.sourceCell == otherAttack.sourceCell) {
                     otherAttack.troops += this.troops
-                    otherAttack.refreshToConquer()
                     this.active = false
                     return
                 }
             }
         }
-
-        this.refreshToConquer()
+        if (this.sourceCell != null) {
+            this.addNeighbors(mg.tile(this.sourceCell))
+        } else {
+            this.refreshToConquer()
+        }
     }
 
     private refreshToConquer() {
diff --git a/src/core/execution/BoatAttackExecution.ts b/src/core/execution/BoatAttackExecution.ts
index 70f88eff4..778de6eb4 100644
--- a/src/core/execution/BoatAttackExecution.ts
+++ b/src/core/execution/BoatAttackExecution.ts
@@ -118,7 +118,7 @@ export class BoatAttackExecution implements Execution {
                 return
             }
             this.attacker.conquer(this.dst)
-            this.mg.addExecution(new AttackExecution(this.troops, this.attacker.id(), this.targetID, null))
+            this.mg.addExecution(new AttackExecution(this.troops, this.attacker.id(), this.targetID, this.dst.cell(), null))
             this.boat.delete()
             this.active = false
             return
diff --git a/src/core/execution/BotExecution.ts b/src/core/execution/BotExecution.ts
index 49c3d3292..5b1743e75 100644
--- a/src/core/execution/BotExecution.ts
+++ b/src/core/execution/BotExecution.ts
@@ -67,6 +67,7 @@ export class BotExecution implements Execution {
             this.bot.troops() / 20,
             this.bot.id(),
             toAttack.isPlayer() ? toAttack.id() : null,
+            null,
             null
         ))
     }
diff --git a/src/core/execution/ExecutionManager.ts b/src/core/execution/ExecutionManager.ts
index 0dfb32ceb..2b27e64a2 100644
--- a/src/core/execution/ExecutionManager.ts
+++ b/src/core/execution/ExecutionManager.ts
@@ -22,11 +22,14 @@ export class Executor {
 
     createExec(intent: Intent): Execution {
         if (intent.type == "attack") {
+            const source: Cell | null = intent.sourceX != null && intent.sourceY != null ? new Cell(intent.sourceX, intent.sourceY) : null
+            const target: Cell | null = intent.targetX != null && intent.targetY != null ? new Cell(intent.targetX, intent.targetY) : null
             return new AttackExecution(
                 intent.troops,
                 intent.attackerID,
                 intent.targetID,
-                new Cell(intent.targetX, intent.targetY)
+                source,
+                target,
             )
         } else if (intent.type == "spawn") {
             return new SpawnExecution(