r1bqn2r/2p1p3/2n1k1pB/pp1pbp1p/3PN3/1N3P2/PPP1PKPP/R3QB1R w - - 10 18
FEN state: r1bqn2r/2p1p3/2n1k1pB/pp1pbp1p/3PN3/1N3P2/PPP1PKPP/R3QB1R w - - 10 18 ; Best move: e4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at e8 and black rook at h8. Black pawn at c7 and black pawn at e7. Black knight at c6, black king at e6, black pawn at g6 and white bishop at h6. Black pawn at a5, black pawn at b5, black pawn at d5, black bishop at e5, black pawn at f5 and black pawn at h5. White pawn at d4 and white knight at e4. White knight at b3 and white pawn at f3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2, white king at f2, white pawn at g2 and white pawn at h2. White rook at a1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 10. Full move number is 18. White to move.