1kb2bnr/1p1q4/r1pp4/p1Bp1P1p/1P1PN1np/8/PRP1P2R/4KBN1 w - - 0 21
FEN state: 1kb2bnr/1p1q4/r1pp4/p1Bp1P1p/1P1PN1np/8/PRP1P2R/4KBN1 w - - 0 21 ; Best move: e2e3
The current state of the chess board is: Black king at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black queen at d7. Black rook at a6, black pawn at c6 and black pawn at d6. Black pawn at a5, white bishop at c5, black pawn at d5, white pawn at f5 and black pawn at h5. White pawn at b4, white pawn at d4, white knight at e4, black knight at g4 and black pawn at h4. White pawn at a2, white rook at b2, white pawn at c2, white pawn at e2 and white rook at h2. White king at e1, white bishop 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.