MESON Chess Problem Database

Problem Display
PID: 154296 (2r1N2R/N2k3B/1Prn1B2/3P1p2/2P2b2/Q4K2/8/8 w - - 0 1)

Easthope, M

Sheffield Guardian (The), 1909

(First published on Fri Dec 31 1909)

2r1N2R/N2k3B/1Prn1B2/3P1p2/2P2b2/Q4K2/8/8

#2

10 + 6

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc4
      • 2.Qe7#
    • 1...Se4
      • 2.Qe7#
    • 1...Sb5
      • 2.Qe7#
    • 1...Sb7
      • 2.Qe7#
    • 1...Sf7
      • 2.Qe7#
    • 1...Sxe8
      • 2.Qe7#
  • Tries
    • 1.Qxd6+?
      • 1...Bxd6
        • 2.Bxf5#
      • 1...Rxd6!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Be6#
      • 1...Kxe8
        • 2.Be6#
      • 1...Rxe8
        • 2.dxc6#
      • 1...Sxc4
        • 2.Qe7#
      • 1...Sxe8
        • 2.Qe7#
      • 1...Se4
        • 2.Qe7#
      • 1...Sb5
        • 2.Qe7#
      • 1...Sb7
        • 2.Qe7#
      • 1...Sf7
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);OGATE,XP(C)::QAR1(A)
    • S(d);OGATE::QAR1(A)
    • S(d);OGATE,XS(I)::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK,XS(d)
      • Vars
        • B(a);XQ(A)::B(H),XP(b)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • B(H);
    • Threat
      • B(H)
    • Vars
      • K(e);S_FLIGHT,XS(I)::R(J)+B(H)
      • R(f);N_GUARD,SBLOCK,XS(I)::P(D),XR(c)
      • S(d);OGATE,XP(C)::QAR1(A)
      • S(d);OGATE,XS(I)::QAR1(A)
      • S(d);OGATE::QAR1(A)
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