MESON Chess Problem Database

Problem Display
PID: 11028 (4n1R1/1R2NkP1/2pPbn2/4Q3/K1Np3B/8/B7/4r3 w - - 0 1)

Carter, WH

Wilkinson, WC

Chess, 1936

4n1R1/1R2NkP1/2pPbn2/4Q3/K1Np3B/8/B7/4r3

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Sxe5#
    • 1...Se4
      • 2.Rf8#
      • 2.Qh5#
    • 1...Sg4
      • 2.Rf8#
      • 2.Qh5#
    • 1...Sd5
      • 2.Rf8#
      • 2.Qh5#
    • 1...Sh5
      • 2.Rf8#
      • 2.Qxh5#
    • 1...Sd7
      • 2.Qh5#
    • 1...Sh7
      • 2.Qh5#
    • 1...Sxd6
      • 2.Sxd6#
      • 2.Qxf6#
    • 1...Sc7
      • 2.Qxf6#
    • 1...Sxg7
      • 2.Qxf6#
  • Tries
    • 1.Qxe6+?
      • 1...Rxe6
        • 2.Se5#
      • 1...Kxe6!
  • Keys
    • 1.d7!
      • threat
        • 2.d8S#
      • 1...Kxe7
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Bxd7
        • 2.Sd6#
      • 1...Sxd7
        • 2.Qh5#
      • 1...Sc7
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(a);XQ(E)::S(C),XR(a)
    • S(e);N_GUARD::QAB(E)
    • S(g);N_GUARD::QAR1(E),XS(e)
    • S(g);N_GUARD,XP(I)::QAR1(E),XS(e)
  • Tries
    • Try
      • Q(E);CHECK,XB(d)
      • Vars
        • R(a);XQ(E)::S(C)
      • Refutation
        • K(f);S_FLIGHT,XQ(E)
  • Actual
    • P(F);
    • Threat
      • P=S
    • Vars
      • K(f);P-FLIGHT,P_SPINB(d),P_SPINS(e),XS(H)::PXS(g)=Q
      • B(d);XP(F)::B(A)+S(C),DCHECK
      • S(e);N_GUARD,XP(F)::QAB(E)
      • S(g);N_GUARD::QAR1(E),XS(e)
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Developed and maintained by Brian Stephenson.
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