r1b2b1r/1p2kp2/1pPpp3/2p1n2p/7P/2PNP1p1/qN1PKPPR/R1B2B2 w - - 4 21
FEN state: r1b2b1r/1p2kp2/1pPpp3/2p1n2p/7P/2PNP1p1/qN1PKPPR/R1B2B2 w - - 4 21 ; Best move: a1a2
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at b7, black king at e7 and black pawn at f7. Black pawn at b6, white pawn at c6, black pawn at d6 and black pawn at e6. Black pawn at c5, black knight at e5 and black pawn at h5. White pawn at h4. White pawn at c3, white knight at d3, white pawn at e3 and black pawn at g3. Black queen at a2, white knight at b2, white pawn at d2, white king at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. White to move.