MESON Chess Problem Database

Problem Display
PID: 245515 (8/K2k4/3PN1B1/8/4N3/8/6Q1/8 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2003

8/K2k4/3PN1B1/8/4N3/8/6Q1/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.S4c5+?
      • 1...Kc8
        • 2.Qc6#
        • 2.Qb7#
        • 2.Qa8#
        • 2.d7#
      • 1...Kxd6!
    • 1.S4g5?
      • 1...Kc8
        • 2.Qc6#
        • 2.Qb7#
      • 1...Kxd6!
    • 1.Qa2?
      • 1...Kc6
        • 2.Be8#
      • 1...Kc8!
    • 1.Qb2?
      • 1...Kc6
        • 2.Qb7#
      • 1...Kc8
        • 2.Qb7#
      • 1...Kxe6!
    • 1.Qd2?
      • 1...Kc6
        • 2.Be8#
      • 1...Kc8
        • 2.d7#
      • 1...Kxe6!
  • Keys
    • 1.Qg5!
      • 1...Kc6
        • 2.Be8#
      • 1...Kxe6
        • 2.Qf5#
      • 1...Kc8
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • S(B);
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • K(a);S_FLIGHT::QAR1(A)
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