MESON Chess Problem Database

Problem Display
PID: 168938 (8/p4K2/p5p1/4Q1Pb/3NPP2/1p2kP2/1P1r1pR1/2B2B2 w - - 0 1)

Kapustin, Fedor Mikhailovich

Permyakov, Evgeni Nikolaevich

2nd HM., SuperProblem, 2014

8/p4K2/p5p1/4Q1Pb/3NPP2/1p2kP2/1P1r1pR1/2B2B2

#2

11 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5+?
      • 1...Kxf3
        • 2.Rg3#
      • 1...gxf5+!
    • 1.Se6?
      • threat
        • 2.Qc3#
      • 1...Bxf3
        • 2.Qd4#
      • 1...Kxf3!
    • 1.Rg3?
      • 1...Bxf3
        • 2.Rxf3#
      • 1...Bg4
        • 2.fxg4#
      • 1...a5!
    • 1.Qa5?
      • threat
        • 2.Qxd2#
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kxf4
        • 2.Bxd2#
      • 1...Bxf3!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qc3#
      • 1...Kd3
        • 2.Qc3#
      • 1...Kxf3
        • 2.Rg3#
      • 1...Bxf3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(d);N_SPINR(a),P-FLIGHT,XP(E)::R1(D)
      • Refutation
        • P(g);CHECK,XS(F)
    • Try
      • S(F);
      • Threat
        • QAR2(I)
      • Vars
        • B(e);SBLOCK,XP(E)::QAB1(I)
      • Refutation
        • K(d);N_SPINR(a),P-FLIGHT,XP(E)
    • Try
      • R(D);
      • Vars
        • B(e);OGATE,P_SPINB(e),XP(E)::R1(D),XB(e)
        • B(e);OGATE::R(D)+P(E),XB(e)
      • Refutation
        • P(f);
    • Try
      • Q(I);
      • Threat
        • QAB1(I),XR(a)
      • Vars
        • K(d);N_SPINR(a),S_FLIGHT,XS(F)::QAB1(I)
        • K(d);S_FLIGHT,XP(H)::B(A),XR(a)
      • Refutation
        • B(e);XP(E)
  • Actual
    • S(F);
    • Threat
      • QAR2(I)
    • Vars
      • K(d);N_SPINR(a),P-FLIGHT::QAR1(I)
      • K(d);N_SPINR(a),OGATEB,P-FLIGHT,XP(E)::R1(D)
      • B(e);SBLOCK,XP(E)::QAB1(I)
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