MESON Chess Problem Database

Problem Display
PID: 215684 (8/1k1N4/1P6/4N3/8/R7/1Q1B4/4K3 w - - 0 1)

Chocolous, Jiri

Berliner Sonntagsblatt, 1881

8/1k1N4/1P6/4N3/8/R7/1Q1B4/4K3

#2

7 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5+?
      • 1...Kc8
        • 2.Ra8#
      • 1...Kb8!
    • 1.Ra6?
      • 1...Kxa6
        • 2.Sc5#
      • 1...Kc8!
  • Keys
    • 1.Ba5!
      • 1...Ka6
        • 2.Sc5#
      • 1...Ka8
        • 2.Qg2#
      • 1...Kc8
        • 2.b7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(a);S_FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT,XR(D)::S(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::S(G)
      • K(a);S_FLIGHT::QAB(B)
      • K(a);OGATE,S_FLIGHT::P(F)
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