rnbq2kr/p2p4/2p2pp1/1pb1p2p/1P2P1nP/P2P2P1/R1P2P2/1NBQKBNR w K - 1 12
FEN state: rnbq2kr/p2p4/2p2pp1/1pb1p2p/1P2P1nP/P2P2P1/R1P2P2/1NBQKBNR w K - 1 12 ; Best move: b4c5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at g8 and black rook at h8. Black pawn at a7 and black pawn at d7. Black pawn at c6, black pawn at f6 and black pawn at g6. Black pawn at b5, black bishop at c5, black pawn at e5 and black pawn at h5. White pawn at b4, white pawn at e4, black knight at g4 and white pawn at h4. White pawn at a3, white pawn at d3 and white pawn at g3. White rook at a2, white pawn at c2 and white pawn at f2. White knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 12. White to move.