r1b3k1/p2p2b1/2p3pp/1p2prn1/1P1q4/B3PPPP/P1PPK3/RN1B2NR w - - 1 21
FEN state: r1b3k1/p2p2b1/2p3pp/1p2prn1/1P1q4/B3PPPP/P1PPK3/RN1B2NR w - - 1 21 ; Best move: e3d4
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at g8. Black pawn at a7, black pawn at d7 and black bishop at g7. Black pawn at c6, black pawn at g6 and black pawn at h6. Black pawn at b5, black pawn at e5, black rook at f5 and black knight at g5. White pawn at b4 and black queen at d4. White bishop at a3, white pawn at e3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2 and white king at e2. White rook at a1, white knight at b1, white bishop at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.