MESON Chess Problem Database

Problem Display
PID: 47588 (8/2N3k1/3KP1P1/3N4/6Q1/8/8/8 w - - 0 1)

McDowell, Michael

British Chess Magazine, 1996

8/2N3k1/3KP1P1/3N4/6Q1/8/8/8

#2

6 + 1

4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2009
56 The Problemist 2012
136 Problem Observer 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6?
      • 1...Kxf6
        • 2.Se8#
      • 1...Kf8
        • 2.g7#
      • 1...Kh8
        • 2.g7#
      • 1...Kh6!
    • 1.Qh5?
      • 1...Kf8
        • 2.Qh8#
      • 1...Kg8!
  • Keys
    • 1.Se7!
      • 1...Kf6
        • 2.Se8#
      • 1...Kh6
        • 2.Sf5#
      • 1...Kf8
        • 2.g7#
      • 1...Kh8
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT,XS(B)::S(F)
        • K(a);OGATE,S_FLIGHT::P(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::S(F)
      • K(a);S_FLIGHT::S(B)
      • K(a);OGATE,S_FLIGHT::P(E)
      • K(a);S_FLIGHT::QAB(A)
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