MESON Chess Problem Database

Problem Display
PID: 215960 (8/7k/5K2/6Pb/8/8/8/7Q w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1974

8/7k/5K2/6Pb/8/8/8/7Q

#2

3 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb7+?
      • 1...Kg8
        • 2.Qg7#
      • 1...Kh8
        • 2.Qg7#
      • 1...Bf7!
  • Keys
    • 1.g6+!
      • 1...Kh6
        • 2.Qc1#
      • 1...Kg8
        • 2.Qa8#
      • 1...Kh8
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINB(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • P(B);CHECK
    • Vars
      • K(b);P-FLIGHT::QAB(A)
      • K(b);N_SPINB(a),S_FLIGHT::QAR(A)
      • K(b);P-FLIGHT::QAB1(A)
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