MESON Chess Problem Database

Problem Display
PID: 105460 (8/Q7/4p2P/5k2/7R/2K5/8/7B w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Pypa, Volodimir Iosifovich

Novi Temi, 1966-1967

8/Q7/4p2P/5k2/7R/2K5/8/7B

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qe7?
      • 1...Kg6
        • 2.Be4#
      • 1...e5
        • 2.Be4#
      • 1...Ke5!
    • 1.Qf7+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kg5!
  • Keys
    • 1.Be4+!
      • 1...Ke5
        • 2.Qd4#
      • 1...Kg5
        • 2.Qe7#
      • 1...Kf6
        • 2.Qg7#

FEATURES

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