MESON Chess Problem Database

Problem Display
PID: 106717 (3r3b/3bPk1K/3R1r1p/1BB1pR2/2N5/1Q6/8/8 w - - 0 1)

Burt, PCS

The Field, 1954

(First published on Thu Jul 29 1954)

3r3b/3bPk1K/3R1r1p/1BB1pR2/2N5/1Q6/8/8

#2

8 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sxe5+?
      • 1...Kxe7
        • 2.Re6#
      • 1...Ke8!
    • 1.Rdxf6+?
      • 1...Ke8
        • 2.Rf8#
      • 1...Bxf6!
    • 1.exd8Q?
      • threat
        • 2.Sxe5#
      • 1...Be8
        • 2.Qxe8#
      • 1...e4
        • 2.Se5#
      • 1...Bxf5+!
  • Keys
    • 1.Re6!
      • threat
        • 2.Sd6#
        • 2.exd8S#
      • 1...Kxe6
        • 2.Se3#
      • 1...Ke8
        • 2.Sd6#
      • 1...Bxb5
        • 2.exd8S#
      • 1...Bxe6
        • 2.Sxe5#
        • 2.exd8S#
      • 1...Ra8
        • 2.Sd6#
      • 1...Rb8
        • 2.Sd6#
      • 1...Rc8
        • 2.Sd6#
      • 1...Re8
        • 2.Sxe5#
        • 2.Sd6#
      • 1...Rf8
        • 2.Sd6#
      • 1...Rg8
        • 2.Sd6#
      • 1...Bc6
        • 2.exd8S#
      • 1...Bc8
        • 2.Sxe5#
        • 2.exd8S#
      • 1...Be8
        • 2.Sxe5#
        • 2.exd8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK,XP(a)
      • Vars
        • K(e);N_SPINR(b),P-FLIGHT,XP(G)::B(D)+R(F),DCHECK
      • Refutation
        • K(e);N_SPINR(b),P_SPINB(d),S_FLIGHT
    • Try
      • R(F);CHECK,XR(b)
      • Vars
        • K(e);OGATE,P_SPINB(d),S_FLIGHT::R1(F)
      • Refutation
        • B(g);P_SPINB(g),XR(F)
    • Try
      • P(G);XR(f)
      • Threat
        • QAB(A)+S(B),DCHECK,XP(a)
      • Vars
        • B(d);N_GUARD::QAB1(G),XB(d)
        • P(a);::QAB(A)+S(B),DCHECK
      • Refutation
        • B(d);CHECK,N_SPINR(b),XR(E)
  • Actual
    • R(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);N_SPINR(b),S_FLIGHT,XR(F)::QAB(A)+S(B)
      • K(e);N_SPINR(b),P_SPINB(d),S_FLIGHT::S(B)
      • B(d);XB(C)::PXR(f)=S
      • R(f);::S(B)
      • B(d);::PXR(f)=S
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