MESON Chess Problem Database

Problem Display
PID: 169275 (8/8/K2RB3/8/1k5B/8/3RP3/8 w - - 0 1)

Antipin, Ivan Ivanovich

SuperProblem 190. TT, 2017

8/8/K2RB3/8/1k5B/8/3RP3/8

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Be1?
      • 1...Ka3
        • 2.Ra2#
      • 1...Kc3
        • 2.Ra2#
      • 1...Ka4
        • 2.Ra2#
      • 1...Kc5!
    • 1.Ra2?
      • 1...Kc3
        • 2.Be1#
      • 1...Kc5!
    • 1.R2d3?
      • 1...Ka4
        • 2.R6d4#
      • 1...Kc5!
    • 1.R6d4+?
      • 1...Ka3
        • 2.Be7#
        • 2.Ra2#
      • 1...Kc5
        • 2.Rc4#
      • 1...Kc3!
    • 1.Rb6+?
      • 1...Ka3
        • 2.Ra2#
      • 1...Ka4
        • 2.Ra2#
      • 1...Kc5
        • 2.Bf2#
        • 2.Be7#
      • 1...Kc3!
  • Keys
    • 1.Be7!
      • 1...Ka3
        • 2.R6d4#
      • 1...Kc3
        • 2.R6d3#
      • 1...Ka4
        • 2.R6d4#
      • 1...Kc5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::R1(A)
        • K(a);S_FLIGHT::B(C)+R(A)
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(A)
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::B(C)+R(E)
      • K(a);S_FLIGHT::R1(E)
      • K(a);P-FLIGHT::R(E)
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