MESON Chess Problem Database

Problem Display
PID: 231793 (8/4Q3/6p1/5p2/4Pk2/8/5BK1/8 w - - 0 1)

Velikhanov, Kenan

ChessStar, 2011

8/4Q3/6p1/5p2/4Pk2/8/5BK1/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qh4#
  • Tries
    • 1.Be3+?
      • 1...Kg4
        • 2.Qg5#
      • 1...Kxe3!
    • 1.Bg3+?
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke3!
  • Keys
    • 1.Qf6!
      • 1...Kxe4
        • 2.Qd4#
      • 1...Kg4
        • 2.Qh4#
      • 1...g5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(D)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT,XB(A)
    • Try
      • B(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);P_PINP(b)
    • Vars
      • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XP(C)::QAR1(D)
      • K(a);N_SPINP(b),P-FLIGHT::QAR1(D)
      • P(c);N_GUARD::QAR1(D),XP(b)
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