1nb1kbnr/r1p1q3/pB1p2pp/5pN1/pP2pP2/4P3/1RPP2PP/1N1QKBR1 w k - 2 13
FEN state: 1nb1kbnr/r1p1q3/pB1p2pp/5pN1/pP2pP2/4P3/1RPP2PP/1N1QKBR1 w k - 2 13 ; Best move: b6a7
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at c7 and black queen at e7. Black pawn at a6, white bishop at b6, black pawn at d6, black pawn at g6 and black pawn at h6. Black pawn at f5 and white knight at g5. Black pawn at a4, white pawn at b4, black pawn at e4 and white pawn at f4. White pawn at e3. White rook at b2, white pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White knight at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Black kingside is the only castle move available. Half move number is 2. Full move number is 13. White to move.