MESON Chess Problem Database

Problem Display
PID: 118249 (1R6/1B6/3k3B/8/K1P3Q1/8/8/8 w - - 0 1)

Pypa, Volodimir Iosifovich

Industrialnoje Zaporozie, 1967

1R6/1B6/3k3B/8/K1P3Q1/8/8/8

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5?
      • 1...Ke7
        • 2.Bf8#
      • 1...Kc7!
    • 1.Qe6+?
      • 1...Kc5
        • 2.Be3#
      • 1...Kc7
        • 2.Bf4#
      • 1...Kxe6!
    • 1.c5+?
      • 1...Kxc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Bg7#
      • 1...Kc7
        • 2.Bf4#
        • 2.Qc8#
      • 1...Ke7!
  • Keys
    • 1.Bd5!
      • 1...Kc5
        • 2.Bf8#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc7
        • 2.Bf4#
      • 1...Ke7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • P(B);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(B)::QAB1(C)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAR1(C)
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