rnb2br1/1qkpp1pp/p1p2p1n/1pP5/3BPP2/1P1B2P1/P2P2KP/RN2Q1NR w - - 1 18
FEN state: rnb2br1/1qkpp1pp/p1p2p1n/1pP5/3BPP2/1P1B2P1/P2P2KP/RN2Q1NR w - - 1 18 ; Best move: e4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black rook at g8. Black queen at b7, black king at c7, black pawn at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at c6, black pawn at f6 and black knight at h6. Black pawn at b5 and white pawn at c5. White bishop at d4, white pawn at e4 and white pawn at f4. White pawn at b3, white bishop at d3 and white pawn at g3. White pawn at a2, white pawn at d2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 18. White to move.