MESON Chess Problem Database

Problem Display
PID: 95600 (3B1K1Q/7N/5P2/3p2P1/3Rn1pk/5BpN/6p1/7R w - - 0 1)

Reeves, Alfred Christopher

Subotic, Miroslav

The Problemist Supplement, 2008

3B1K1Q/7N/5P2/3p2P1/3Rn1pk/5BpN/6p1/7R

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Sf4#
    • 1...Sxg5
      • 2.S7xg5#
    • 1...Sxf6
      • 2.Sxf6#
    • 1...g1Q
      • 2.Sxg1#
    • 1...g1S
      • 2.Sxg1#
    • 1...g1B
      • 2.Sxg1#
    • 1...g1R
      • 2.Sxg1#
  • Tries
    • 1.Bxg2?
      • threat
        • 2.Sg1#
        • 2.Sf2#
        • 2.Sf4#
      • 1...Kh5
        • 2.Sf4#
      • 1...Sxg5
        • 2.S3xg5#
        • 2.S7xg5#
      • 1...Sf2
        • 2.Sxf2#
      • 1...gxh3!
    • 1.g6?
      • threat
        • 2.S7g5#
      • 1...Kh5
        • 2.Sf4#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...gxh3
        • 2.f7#
      • 1...Sg5
        • 2.S7xg5#
      • 1...gxf3!
  • Keys
    • 1.f7!
      • threat
        • 2.Sf6#
      • 1...Kh5
        • 2.Sf4#
      • 1...Sxg5
        • 2.S7xg5#
      • 1...gxh3
        • 2.g6#
      • 1...Sf6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(e);P-FLIGHT,P_SPINP(d)::R(A)+S(C),DCHECK
    • S(c);P_SPINP(d),XP(E)::QAR(J)+S(G),XS(c)
    • S(c);P_SPINP(d),XP(F)::QAR(J)+S(G),XS(c)
    • P(a);N_GUARD::R(A)+S(C),XQ(a)
    • P(a);N_GUARD::R(A)+S(C),XS(a)
    • P(a);N_GUARD::R(A)+S(C),XB(a)
    • P(a);N_GUARD::R(A)+S(C),XR(a)
  • Tries
    • Try
      • B(B);XP(a)
      • Threat
        • DUALS(3)
      • Vars
        • K(e);P-FLIGHT::R(A)+S(C),DCHECK
        • S(c);P_SPINP(d)::R(A)+S(C),XS(c)
      • Refutation
        • P(d);P_SPINP(d),P_SPINS(c),XS(C)
    • Try
      • P(E);
      • Threat
        • QAR(J)+S(G)
      • Vars
        • K(e);P-FLIGHT,P_SPINP(d)::R(A)+S(C),DCHECK
        • S(c);P_SPINP(d),P_SPINS(c),XP(F)::QAR(J)+S(G),XS(c)
        • P(d);P_SPINP(d),P_SPINS(c),XS(C)::B(H)+P(F)
        • S(c);P_SPINP(d)::QAR(J)+S(G),XS(c)
      • Refutation
        • P(d);P_SPINS(c),XB(B)
  • Actual
    • P(F);
    • Threat
      • QAR(J)+S(G)
    • Vars
      • K(e);P-FLIGHT,P_SPINP(d)::R(A)+S(C),DCHECK
      • S(c);P_SPINP(d),P_SPINS(c),XP(E)::QAR(J)+S(G),XS(c)
      • P(d);P_SPINP(d),P_SPINS(c),XS(C)::B(H)+P(E)
      • S(c);P_SPINP(d)::QAR(J)+S(G),XS(c)
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