MESON Chess Problem Database

Problem Display
PID: 80113 (1Q6/2Nnb1R1/8/2p1Pk2/2PR1pNP/3n1P2/8/K7 w - - 0 1)

le Grand, Piet

Probleemblad, 2008

1Q6/2Nnb1R1/8/2p1Pk2/2PR1pNP/3n1P2/8/K7

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Rxg5#
    • 1...Bd6
      • 2.Rg5#
    • 1...Bf8
      • 2.Rg5#
    • 1...Sf6
      • 2.Rg5#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qxd3#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sxe5!
    • 1.Qb7?
      • threat
        • 2.Qe4#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sf2!
    • 1.Qa8?
      • threat
        • 2.Qe4#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sf2!
    • 1.Qf8+?
      • 1...Bf6
        • 2.Rg5#
      • 1...Bxf8
        • 2.Rg5#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sxf8!
    • 1.Qg8?
      • threat
        • 2.Qe6#
        • 2.Qh7#
      • 1...S3xe5
        • 2.Qe6#
      • 1...S7xe5
        • 2.Qe6#
      • 1...Sf6
        • 2.Rg5#
        • 2.Qe6#
      • 1...Sf8!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Sh6#
      • 1...S3xe5
        • 2.Qb1#
      • 1...S7xe5
        • 2.Qc8#
      • 1...Bg5
        • 2.Rxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::R1(I),XB(f)
    • B(f);N_GUARD::R1(I)
    • S(e);S_CUTB(f)::R1(I)
  • Tries
    • Try
      • Q(J);P_PINS(a)
      • Threat
        • QAB(J),XS(a)
      • Vars
        • S(e);S_CUTB(f)::R1(I)
      • Refutation
        • S(e);XP(G)
    • Try
      • Q(J);
      • Threat
        • QAB1(J)
      • Vars
        • S(e);S_CUTB(f)::R1(I)
      • Refutation
        • S(a);
    • Try
      • Q(J);
      • Threat
        • QAB1(J)
      • Vars
        • S(e);S_CUTB(f)::R1(I)
      • Refutation
        • S(a);
    • Try
      • Q(J);CHECK
      • Vars
        • B(f);P_SPINB(f)::R1(I)
        • B(f);XQ(J)::R1(I)
        • S(e);P_SPINS(e)::R1(I)
      • Refutation
        • S(e);XQ(J)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(G)::QAB1(J)
        • S(e);XP(G)::QAB1(J)
      • Refutation
        • S(e);
  • Actual
    • R(D);
    • Threat
      • S(E)
    • Vars
      • S(a);OGATEB,P_SPINS(a),XP(G)::QAB(J)
      • S(e);OGATEB,P_SPINS(e),XP(G)::QAB(J)
      • B(f);N_GUARD::R1(I),XB(f)
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