MESON Chess Problem Database

Problem Display
PID: 153097 (8/8/4B3/Q7/8/P1N5/1k2K3/8 w - - 0 1)

Zimmer, Eligiusz

Schweizerische Schachzeitung, 2001

8/8/4B3/Q7/8/P1N5/1k2K3/8

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Qb4+?
      • 1...Ka1
        • 2.Qb1#
      • 1...Kc1
        • 2.Qb1#
      • 1...Kc2!
    • 1.Qg5?
      • 1...Ka1
        • 2.Qc1#
      • 1...Kc2
        • 2.Qd2#
      • 1...Kxc3
        • 2.Qd2#
      • 1...Kxa3!
  • Keys
    • 1.Qd5!
      • 1...Ka1
        • 2.Qa2#
      • 1...Kc1
        • 2.Qd2#
      • 1...Kc2
        • 2.Qd2#
      • 1...Kxa3
        • 2.Qb3#
      • 1...Kxc3
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(D)
        • K(a);P-FLIGHT::QAR1(D)
        • K(a);S_FLIGHT,XS(C)::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);S_FLIGHT,XP(B)::QAR1(D)
      • K(a);S_FLIGHT,XS(C)::QAB1(D)
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