r2k1bn1/1pnBp2r/p1ppP2p/6p1/2NP1PPP/q1P1Q3/PP5R/R1B2KN1 w - - 0 21
FEN state: r2k1bn1/1pnBp2r/p1ppP2p/6p1/2NP1PPP/q1P1Q3/PP5R/R1B2KN1 w - - 0 21 ; Best move: b2a3
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8 and black knight at g8. Black pawn at b7, black knight at c7, white bishop at d7, black pawn at e7 and black rook at h7. Black pawn at a6, black pawn at c6, black pawn at d6, white pawn at e6 and black pawn at h6. Black pawn at g5. White knight at c4, white pawn at d4, white pawn at f4, white pawn at g4 and white pawn at h4. Black queen at a3, white pawn at c3 and white queen at e3. White pawn at a2, white pawn at b2 and white rook at h2. White rook at a1, white bishop at c1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.