r1b1kb1r/p1pnq2p/1p1pp2n/5pp1/P3P2N/RPN3P1/2PP1PBP/2BQK2R w Kkq - 1 10
FEN state: r1b1kb1r/p1pnq2p/1p1pp2n/5pp1/P3P2N/RPN3P1/2PP1PBP/2BQK2R w Kkq - 1 10 ; Best move: e4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black knight at d7, black queen at e7 and black pawn at h7. Black pawn at b6, black pawn at d6, black pawn at e6 and black knight at h6. Black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at e4 and white knight at h4. White rook at a3, white pawn at b3, white knight at c3 and white pawn at g3. White pawn at c2, white pawn at d2, white pawn at f2, white bishop at g2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. White to move.