Reasoning eval · Puzzle mtbnz

1 of 3 models found the move, and said 14 false things along the way

Green is the solution, red is what the model played when it differed. Each claim below was pulled out of the prose beside it and checked against this exact position.

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
SolutionPlayedWhite to move
Rating
2027(2000 band)
Solution
f4c7 d8c7 g3c7
Motifs
advantagemiddlegameshorttrappedPiece
FEN
r1bq1r1k/pp1n1ppp/2p2b2/3p4/3N1B2/P1N3QP/1PP2PP1/R3R1K1 w - - 5 15
MissedPlayed c3e4(−1030cp)Claims true 20%11813 out · $0.1188 · 148.5s

Stated plan

Attack the key defensive bishop on f6 with the knight to open lines toward the black king.

Reasoning

Black's bishop on f6 is the key defender of g7 and covers the long diagonal, working against White's Qg3+Bf4 battery. By playing Nc3-e4, White attacks this bishop directly (it cannot be captured by anything, since neither d5 pawn nor the f6-bishop can reach e4). Black is forced to either give up the strong f6-bishop or allow Nxf6, damaging the kingside pawn structure (gxf6) or losing the bishop pair, both of which favor White's attacking chances against the black king with Qg3/Bf4 already aimed that direction. This is the most forcing and improving move in the position.

Claims extracted from it

1 true · 4 false · 5 unverifiable

Hover a claim to light up the squares it is about.

  • True

    Black's bishop on f6 is the key defender of g7

    defendedsquare=g7by=f6

  • Unverifiable

    Black's bishop on f6 covers the long diagonal

    unverifiable

  • Unverifiable

    By playing Nc3-e4, White attacks the bishop on f6

    lineprefix=playedmoves=Ne4assertion=type:attacks_piece piece:bishop

  • Unverifiable

    The d5 pawn cannot capture on e4

    unverifiable

  • Unverifiable

    The f6-bishop cannot capture on e4

    unverifiable

  • False

    After Ne4, Black must either give up the f6-bishop or allow Nxf6

    lineprefix=playedmoves=Ne4assertion=type:forced_reply

  • False

    If Black allows Nxf6, gxf6 damages the kingside pawn structure

    lineprefix=playedmoves=Ne4 gxf6assertion=type:unverifiable

  • False

    If Black allows Nxf6, Black loses the bishop pair

    lineprefix=playedmoves=Ne4 Nxf6assertion=type:unverifiable

  • Unverifiable

    Both outcomes favor White's attacking chances against the black king with Qg3/Bf4 aimed that direction

    unverifiable

  • False

    Ne4 is the most forcing and improving move in the position

    best_movemove=Ne4