MESON Chess Problem Database

Problem Display
PID: 55541 (3n1n1K/4pkNN/p3rP1p/qb3P1P/1b5Q/5R2/8/8 w - - 0 1)

Mansfield, Comins

Themes-64, 1975

3n1n1K/4pkNN/p3rP1p/qb3P1P/1b5Q/5R2/8/8

#2

8 + 10

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6+
      • 2.fxg6#
      • 2.hxg6#
  • Keys
    • 1.fxe7!
      • threat
        • 2.fxe6#
      • 1...Sg6+
        • 2.fxg6#
      • 1...Rxe7
        • 2.Qf6#
      • 1...Rf6
        • 2.Qxf6#
      • 1...Re1
        • 2.Qf6#
      • 1...Re2
        • 2.Qf6#
      • 1...Re3
        • 2.Qf6#
      • 1...Re4
        • 2.Qf6#
      • 1...Re5
        • 2.Qf6#
      • 1...Rb6
        • 2.exd8S#
      • 1...Rc6
        • 2.e8Q#
        • 2.e8B#
      • 1...Rd6
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Rg6
        • 2.fxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(E);XP(g)
    • Threat
      • R(A)+P(C)DCHECK,XR(e)
    • Vars
      • S(j);CHECK,OGATE::R(A)+P(C)DCHECK,XS(j)
      • R(e);N_GUARD,XP(E)::QAR1(B)
      • R(e);N_GUARD::QAR1(B),XR(e)
      • R(e);N_GUARD::QAR1(B)
      • R(e);S_CUTQ(b)::PXS(i)=S
      • R(e);N_GUARD,S_CUTB(c)::P=Q
      • R(e);S_CUTB(a)::PXS(j)=Q
      • R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
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