1nb1qr2/rpppp1kp/6pb/P4p1n/P2PP3/2P2NP1/1R1NBP1P/2BQK2R w K - 3 15
FEN state: 1nb1qr2/rpppp1kp/6pb/P4p1n/P2PP3/2P2NP1/1R1NBP1P/2BQK2R w K - 3 15 ; Best move: e4f5
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at e8 and black rook at f8. Black rook at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7, black king at g7 and black pawn at h7. Black pawn at g6 and black bishop at h6. White pawn at a5, black pawn at f5 and black knight at h5. White pawn at a4, white pawn at d4 and white pawn at e4. White pawn at c3, white knight at f3 and white pawn at g3. White rook at b2, white knight at d2, white bishop at e2, white pawn at f2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 15. White to move.