r1b3kr/p1p1qp1p/1nn5/1P2P1p1/2KpP1PP/N1b5/PP1B4/1R1Q1BNR w - - 2 21
FEN state: r1b3kr/p1p1qp1p/1nn5/1P2P1p1/2KpP1PP/N1b5/PP1B4/1R1Q1BNR w - - 2 21 ; Best move: c4d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black queen at e7, black pawn at f7 and black pawn at h7. Black knight at b6 and black knight at c6. White pawn at b5, white pawn at e5 and black pawn at g5. White king at c4, black pawn at d4, white pawn at e4, white pawn at g4 and white pawn at h4. White knight at a3 and black bishop at c3. White pawn at a2, white pawn at b2 and white bishop at d2. White rook 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 2. Full move number is 21. White to move.