MESON Chess Problem Database

Problem Display
PID: 85764 (7K/2p4P/2Q5/8/8/4P3/5Br1/7k w - - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1970

7K/2p4P/2Q5/8/8/4P3/5Br1/7k

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kh2
      • 2.Qh6#
  • Tries
    • 1.Qc1+?
      • 1...Rg1
        • 2.Qxg1#
      • 1...Kh2!
  • Keys
    • 1.Bg3!
      • 1...Kg1
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);N_SPINR(b),P-FLIGHT::QAR(C)
  • Tries
    • Try
      • Q(C);CHECK,N_PINR(b)
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR1(C),XR(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);N_SPINR(b),P-FLIGHT::QAR(C)
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