2r2b1r/p2kn1p1/b1p2p2/1p2PN1p/1n6/P3pPPP/1PQP2R1/RNB1KB2 w - - 3 21
FEN state: 2r2b1r/p2kn1p1/b1p2p2/1p2PN1p/1n6/P3pPPP/1PQP2R1/RNB1KB2 w - - 3 21 ; Best move: a3b4
The current state of the chess board is: Black rook at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black king at d7, black knight at e7 and black pawn at g7. Black bishop at a6, black pawn at c6 and black pawn at f6. Black pawn at b5, white pawn at e5, white knight at f5 and black pawn at h5. Black knight at b4. White pawn at a3, black pawn at e3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at b2, white queen at c2, white pawn at d2 and white rook at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. White to move.