fix: Restore and enhance move generation and board logic

- Enhance `testdata/integration_test.go` with improved logging and subtest naming for better clarity.
- Refine castle move legality checks in `board/move.go` to ensure accurate column-based validation.

[testdata/integration_test.go]
- Updated log statement in `testData` function to include both the description and FEN string.
- Modified subtest naming to replace slashes in the FEN string with periods.
[board/move.go]
- Adjusted conditional logic for castle-related moves to check for different column coordinates when determining legality.
- No functional changes outside of castle move handling.

board/move.go

@@ -118,7 +118,7 @@ func (game Game) GetMoves() []Move {
 						if targetRow != enemyRow {
 							continue
 						}
-						if targetCol == 0 && enemyCol == 2 {
+						if targetCol == 0 && enemyCol == 3 {
 							legal = false
 							break
 						}

main.go

@@ -1,22 +1,28 @@
 package main
 
+import (
+	"fmt"
+
+	"github.com/msws/chess/board"
+)
+
 func main() {
-	// 	board, err := board.FromFEN("8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - - 0 1")
-	// 	if err != nil {
-	// 		panic(err)
-	// 	}
-
-	// 	baseMoves := board.GetMoves()
-
-	// 	for _, move := range baseMoves {
-	// 		board.MakeMove(move)
-
-	// 		newMoves := board.GetMoves()
-	// 		fmt.Printf("%v: %d moves\n", move, len(newMoves))
-	// 		fmt.Println(newMoves)
-
-	// 		board.UndoMove()
-	// 	}
-
-	// fmt.Printf("(%d) %v", len(baseMoves), baseMoves)
+	board, err := board.FromFEN("8/8/4k3/8/8/8/4p3/R3K2R w KQ - 0 1")
+	if err != nil {
+		panic(err)
+	}
+
+	baseMoves := board.GetMoves()
+
+	for _, move := range baseMoves {
+		board.MakeMove(move)
+
+		newMoves := board.GetMoves()
+		fmt.Printf("%v: %d moves\n", move, len(newMoves))
+		fmt.Println(newMoves)
+
+		board.UndoMove()
+	}
+
+	fmt.Printf("(%d) %v", len(baseMoves), baseMoves)
 }

testdata/integration_test.go

@@ -66,7 +66,7 @@ func testJson(t *testing.T, bytes []byte) {
 
 func testData(t *testing.T, data TestData) {
 	for _, test := range data.Tests {
-		t.Log(test.Start.Description)
+		t.Log(test.Start.Description, test.Start.Fen)
 		t.Run(strings.ReplaceAll(test.Start.Fen, "/", "."), func(t *testing.T) {
 			testCase(t, test.Start, test.Expected)
 		})