MESON Chess Problem Database

Problem Display
PID: 3211 (8/8/K7/8/p4R2/kp3Q2/2R5/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

Uchitelskaya gazeta, 1984

8/8/K7/8/p4R2/kp3Q2/2R5/8

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qxa4#
        • 2.Qb4#
        • 2.Qe7#
      • 1...b2
        • 2.Qxa4#
      • 1...bxc2!
    • 1.Qd5?
      • threat
        • 2.Qc5#
        • 2.Qd6#
      • 1...b2
        • 2.Rc3#
      • 1...bxc2!
    • 1.Qc6?
      • threat
        • 2.Rxa4#
        • 2.Qxa4#
        • 2.Qc5#
        • 2.Qd6#
      • 1...b2
        • 2.Qxa4#
      • 1...bxc2!
    • 1.Qb7?
      • threat
        • 2.Qb4#
        • 2.Qe7#
      • 1...b2
        • 2.Qxb2#
      • 1...bxc2!
  • Keys
    • 1.Rb4!
      • 1...Kxb4
        • 2.Qf8#

Anticipated by 148427(1894)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • DUALS(3)
      • Vars
        • P(b);::QAR1(B),XP(c)
      • Refutation
        • P(b);XR(A)
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB,SBLOCK::R(A)
      • Refutation
        • P(b);XR(A)
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • DUALS(4)
      • Vars
        • P(b);::QAR1(B),XP(c)
      • Refutation
        • P(b);XR(A)
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATE::QAB1(B),XP(b)
      • Refutation
        • P(b);XR(A)
  • Actual
    • R(C);
    • Vars
      • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XR(C)::QAB(B)
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