MESON Chess Problem Database

Problem Display
PID: 262781 (8/8/8/8/kN6/1NQ4K/1B6/8 w - - 0 1)

Jakubowski, Grzegorz

Szachy, 1990

8/8/8/8/kN6/1NQ4K/1B6/8

#2

5 + 1

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Ba1?
      • 1...Ka3
        • 2.Sc5#
      • 1...Kb5!
  • Keys
    • 1.Ba3!
      • 1...Kxa3
        • 2.Sc5#
      • 1...Kb5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR(C)+S(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);N_GUARD,P-FLIGHT,XB(A)::QAR(C)+S(B)
      • K(a);N_GUARD,S_FLIGHT::QAB1(C)
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