4kb1r/r4ppp/n3p3/qb1p4/n2K1P1P/N1PpQ3/1P1P2PN/R1B4R w k - 0 21
FEN state: 4kb1r/r4ppp/n3p3/qb1p4/n2K1P1P/N1PpQ3/1P1P2PN/R1B4R w k - 0 21 ; Best move: e3e6
The current state of the chess board is: Black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6 and black pawn at e6. Black queen at a5, black bishop at b5 and black pawn at d5. Black knight at a4, white king at d4, white pawn at f4 and white pawn at h4. White knight at a3, white pawn at c3, black pawn at d3 and white queen at e3. White pawn at b2, white pawn at d2, white pawn at g2 and white knight at h2. White rook at a1, white bishop at c1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. White to move.