rnbq2nr/pp4bp/4pp1k/1Npp2pP/1P1B4/3BP3/P1PP1PP1/R2QK1NR w KQ - 3 10
FEN state: rnbq2nr/pp4bp/4pp1k/1Npp2pP/1P1B4/3BP3/P1PP1PP1/R2QK1NR w KQ - 3 10 ; 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 knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at g7 and black pawn at h7. Black pawn at e6, black pawn at f6 and black king at h6. White knight at b5, black pawn at c5, black pawn at d5, black pawn at g5 and white pawn at h5. White pawn at b4 and white bishop at d4. White bishop at d3 and white pawn at e3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 3. Full move number is 10. White to move.