MESON Chess Problem Database

Problem Display
PID: 251194 (2R5/k1P5/ppP5/2pK4/7b/2Q5/8/1R6 w - - 0 1)

Kapustin, Fedor Mikhailovich

6th Prize, Uralski Problemist-20 JT, 2013

2R5/k1P5/ppP5/2pK4/7b/2Q5/8/1R6

#2

6 + 5

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Qxc5#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qxb6#
      • 1...b5
        • 2.Qxc5#
      • 1...cxb4!
    • 1.Qa5?
      • threat
        • 2.Qxb6#
      • 1...bxa5
        • 2.Rb7#
      • 1...b5!
    • 1.Qxc5?
      • threat
        • 2.Qxb6#
      • 1...bxc5
        • 2.Rb7#
      • 1...Bf2!
  • Keys
    • 1.Rxb6!
      • threat
        • 2.Rb7#
      • 1...Kxb6
        • 2.Qxc5#
      • 1...a5
        • 2.Qxa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(d);OGATEB::QAB(B),XP(b)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(d)
      • Vars
        • P(d);OGATEB::QAB(B),XP(b)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);P_PINP(c)
      • Threat
        • QAB1(B),XP(d)
      • Vars
        • P(d);N_SPINP(c),OGATE,XQ(B)::R1(A)
      • Refutation
        • P(d);
    • Try
      • Q(B);P_PINP(d),XP(b)
      • Threat
        • QAB1(B),XP(d)
      • Vars
        • P(d);N_SPINP(d),OGATE,XQ(B)::R1(A)
      • Refutation
        • B(a);
  • Actual
    • R(A);XP(d)
    • Threat
      • R1(A)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(A)::QAB1(B),XP(b)
      • P(c);OGATEB::QAR2(B),XP(c)
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