4kb1r/4p2p/r3b1p1/p1pp1n2/pP2p2P/2N3R1/3PKPN1/2B2B1R w k - 1 25
FEN state: 4kb1r/4p2p/r3b1p1/p1pp1n2/pP2p2P/2N3R1/3PKPN1/2B2B1R w k - 1 25 ; Best move: b4c5
The current state of the chess board is: Black king at e8, black bishop at f8 and black rook at h8. Black pawn at e7 and black pawn at h7. Black rook at a6, black bishop at e6 and black pawn at g6. Black pawn at a5, black pawn at c5, black pawn at d5 and black knight at f5. Black pawn at a4, white pawn at b4, black pawn at e4 and white pawn at h4. White knight at c3 and white rook at g3. White pawn at d2, white king at e2, white pawn at f2 and white knight at g2. White bishop at c1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 25. White to move.