MESON Chess Problem Database

Problem Display
PID: 243775 (3N3K/4kP2/1P1N1p2/5p2/2P2P2/1P6/1Q6/8 w - - 0 1)

Bie, Hans Petter

Thema Danicum, 1978

3N3K/4kP2/1P1N1p2/5p2/2P2P2/1P6/1Q6/8

#2

9 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.S6b7?
      • 1...Kf8
        • 2.Qa3#
      • 1...Kd7!
    • 1.Qxf6+?
      • 1...Kd7
        • 2.f8S#
      • 1...Kf8
        • 2.Se6#
      • 1...Kxf6!
    • 1.f8Q+?
      • 1...Kxf8
        • 2.Qxf6#
      • 1...Kd7!
  • Keys
    • 1.f8S!
      • 1...Kxd6
        • 2.Qa3#
      • 1...Kxd8
        • 2.Qxf6#
      • 1...Kxf8
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(c);S_FLIGHT::QAB(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT::P=S
        • K(c);S_FLIGHT::S(H)
      • Refutation
        • K(c);S_FLIGHT,XQ(A)
    • Try
      • P(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XQ(G)::QAR2(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • P(G);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(A)
      • K(c);S_FLIGHT,XS(H)::QAB(A),XP(b)
      • K(c);S_FLIGHT,XS(G)::QAR2(A),XP(b)
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