MESON Chess Problem Database

Problem Display
PID: 274147 (8/6pr/7N/4K1k1/4B3/8/7Q/8 w - - 0 1)

Zimmer, Eligiusz

diagrammes, 2002

8/6pr/7N/4K1k1/4B3/8/7Q/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Bg6?
      • threat
        • 2.Qh5#
      • 1...Rxh6
        • 2.Qg3#
      • 1...Kxg6!
    • 1.Qg1+?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6
        • 2.Qg6#
      • 1...Kh5!
    • 1.Qg3+?
      • 1...Kxh6
        • 2.Qh4#
        • 2.Qg6#
      • 1...Kh5!
    • 1.Qg2+?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6
        • 2.Qg6#
      • 1...Kh5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qh5#
      • 1...Kg6
        • 2.Qh5#
      • 1...Rxh6
        • 2.Qg3#
      • 1...g6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(A)
      • Vars
        • R(c);SBLOCK,XS(D)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(A)
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(A)
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);P-FLIGHT::QAB1(A)
      • R(c);SBLOCK,XS(D)::QAR2(A)
      • P(b);SBLOCK::QAB1(A)
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