MESON Chess Problem Database

Problem Display
PID: 150676 (5b2/6n1/1Q3P2/r1p1k1Pn/P5P1/PN3Bp1/K1R1P2r/2B5 w - - 0 1)

Walton, FW

Manchester Weekly Times, 1921

(First published on Sat Aug 6 1921)

5b2/6n1/1Q3P2/r1p1k1Pn/P5P1/PN3Bp1/K1R1P2r/2B5

#2

12 + 8

14868 Pirnie Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Rxe2#
    • 1...Sf4
      • 2.Bb2#
    • 1...Sxf6
      • 2.Qxf6#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Qd5#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Sf4
        • 2.Bb2#
      • 1...c4!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Rd5#
      • 1...Kf4
        • 2.Rd5#
      • 1...Rxe2
        • 2.Rxe2#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sf4
        • 2.Bb2#
      • 1...c4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE,P_PINR(C),XP(D)::R(C),XR(a)
    • S(f);SBLOCK::B(A)
    • S(f);OGATE,XP(L)::QAB1(K),XS(f)
  • Tries
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • S(f);OGATE,XP(L)::QAB1(K),XS(f)
        • S(f);SBLOCK::B(A)
      • Refutation
        • P(d);
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • K(e);S_FLIGHT::B(A)+R(C)
      • R(a);OGATE,P_PINR(C),XP(D)::R(C),XR(a)
      • S(f);OGATE,XP(L)::QAB1(K),XS(f)
      • B(h);N_GUARD::QAB1(K),XB(h)
      • S(f);SBLOCK::B(A)
      • P(d);OGATE::QAR2(K)
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