MESON Chess Problem Database

Problem Display
PID: 171998 (8/1k2K3/1N6/4Q3/8/1B6/8/1R6 w - - 0 1)

Apro, Laszlo

Gazeta Czestochowska, 1970

8/1k2K3/1N6/4Q3/8/1B6/8/1R6

#2

5 + 1

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bc4?
      • 1...Ka7
        • 2.Qc7#
      • 1...Kc6!
    • 1.Bd5+?
      • 1...Ka6
        • 2.Qa1#
      • 1...Ka7!
  • Keys
    • 1.Sc8!
      • 1...Ka6
        • 2.Bc4#
      • 1...Kc6
        • 2.Ba4#
      • 1...Ka8
        • 2.Bd5#
      • 1...Kxc8
        • 2.Be6#

Anticipated by 90264(1940), 169934(1945), 18264(1954)

This anticipates 35521(1994), 79150(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • K(a);S_FLIGHT,XS(D)::B(B)
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