rnb1kbnr/4p3/1p6/p2p2pp/1P3pPP/3P1P1N/P3P2R/RN2KB2 w - - 0 18
FEN state: rnb1kbnr/4p3/1p6/p2p2pp/1P3pPP/3P1P1N/P3P2R/RN2KB2 w - - 0 18 ; Best move: b1c3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at e7. Black pawn at b6. Black pawn at a5, black pawn at d5, black pawn at g5 and black pawn at h5. White pawn at b4, black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at d3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at e2 and white rook at h2. White rook at a1, white knight at b1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.