MESON Chess Problem Database

Problem Display
PID: 107313 (8/pk6/p7/p1K2B2/8/8/8/5Q2 w - - 0 1)

Zimmer, Eligiusz

Telescacco 92, 1999

8/pk6/p7/p1K2B2/8/8/8/5Q2

#2

3 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1+?
      • 1...Ka8
        • 2.Be4#
      • 1...Kc7!
    • 1.Qf4?
      • 1...Ka8
        • 2.Be4#
      • 1...a4!
  • Keys
    • 1.Qxa6+!
      • 1...Kxa6
        • 2.Bc8#
      • 1...Kc7
        • 2.Qc8#
      • 1...Ka8
        • 2.Qc8#
      • 1...Kb8
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::B(C)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(d);S_FLIGHT::B(C)
      • Refutation
        • P(a);
  • Actual
    • Q(A);CHECK,XP(b)
    • Vars
      • K(d);S_FLIGHT,XQ(A)::B(C)
      • K(d);OGATE,P-FLIGHT::QAR1(A)
      • K(d);OGATE,P_SPINP(c),S_FLIGHT::QAR2(A)
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