MESON Chess Problem Database

Problem Display
PID: 9670 (K5n1/6b1/Q1N5/2Pk2NR/1p6/4P1p1/8/1Br4q w - - 0 1)

Daniel, Arthur William

1st Prize, Western Daily Mercury, 1907

(First published on Fri Jun 7 1907)

K5n1/6b1/Q1N5/2Pk2NR/1p6/4P1p1/8/1Br4q

#2

8 + 7

3360 Simple Two-move Themes 1924
56 The Problemist 2007
14868 Pirnie Collection 2012
3713 Snap 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Se4#
  • Tries
    • 1.Sh3+?
      • 1...Be5
        • 2.Rxe5#
      • 1...Ke6!
    • 1.Sxb4+?
      • 1...Ke5+
        • 2.Sf3#
      • 1...Kxc5+!
    • 1.Se7+?
      • 1...Kxc5+
        • 2.Se4#
      • 1...Ke5+
        • 2.Sf3#
      • 1...Sxe7!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Qd6#
      • 1...Kxc5+
        • 2.Se4#
      • 1...Ke5+
        • 2.Sf3#
      • 1...Rxc5
        • 2.Qe6#
      • 1...Be5
        • 2.Qc6#
      • 1...Bf8
        • 2.Sh3#

This anticipates 144164(1938)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT,P_PINS(G),XP(C)::R(E)+S(D),DCHECK
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(E),XB(f)
      • Refutation
        • K(e);P_PINS(G),S_FLIGHT
    • Try
      • S(G);CHECK,XP(d)
      • Vars
        • K(e);CHECK,P-FLIGHT::R(E)+S(D),DCHECK
      • Refutation
        • K(e);CHECK,P-FLIGHT,XP(C)
    • Try
      • S(G);CHECK
      • Vars
        • K(e);CHECK,P-FLIGHT,XP(C)::R(E)+S(D),DCHECK
        • K(e);CHECK,P-FLIGHT::R(E)+S(D),DCHECK
      • Refutation
        • S(g);XS(G)
  • Actual
    • S(G);
    • Threat
      • QAR1(F)
    • Vars
      • K(e);CHECK,P-FLIGHT,XP(C)::R(E)+S(D),DCHECK
      • K(e);CHECK,P-FLIGHT::R(E)+S(D),DCHECK
      • R(a);SBLOCK,XP(C)::QAB1(F)
      • B(f);SBLOCK::QAB1(F)
      • B(f);N_GUARD::R(E)+S(D)
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