r1k3nr/p3bp1p/b1pBp3/1pPpP1P1/P2P4/8/P3K1PP/RN1Q1BNR w - - 3 17
FEN state: r1k3nr/p3bp1p/b1pBp3/1pPpP1P1/P2P4/8/P3K1PP/RN1Q1BNR w - - 3 17 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black king at c8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at e7, black pawn at f7 and black pawn at h7. Black bishop at a6, black pawn at c6, white bishop at d6 and black pawn at e6. Black pawn at b5, white pawn at c5, black pawn at d5, white pawn at e5 and white pawn at g5. White pawn at a4 and white pawn at d4. White pawn at a2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 17. White to move.