MESON Chess Problem Database

Problem Display
PID: 255015 (b4n2/p2n4/Q2P4/1P2P3/1r2k2P/1p1N4/6N1/3RKRBB w - - 0 1)

Sparke, Arthur M

Western Morning News, 1921

(First published on Sat Sep 3 1921)

b4n2/p2n4/Q2P4/1P2P3/1r2k2P/1p1N4/6N1/3RKRBB

#2

12 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Se3#
    • 1...Bd5
      • 2.Rf4#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Sxe5
      • 2.Sc5#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Sge1#
      • 1...Sxe5
        • 2.Sc5#
      • 1...Kd5!
    • 1.h5?
      • threat
        • 2.Sh4#
      • 1...Sxe5
        • 2.Sc5#
      • 1...Kd5!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qxa8#
      • 1...Kd5
        • 2.Sgf4#
      • 1...Rxb5
        • 2.Qc4#
      • 1...Sxe5
        • 2.Sc5#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Rd4
        • 2.Se3#
      • 1...Bd5
        • 2.Rf4#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Sc5
        • 2.Sgf4#
      • 1...Sb6
        • 2.Sgf4#
      • 1...Sf6
        • 2.Sgf4#
      • 1...Sb8
        • 2.Sgf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::B(E)+S(F)
    • B(f);SBLOCK::R1(C)
    • B(f);N_GUARD::QAB(K),XB(f)
    • S(e);N_GUARD,SBLOCK,XP(J)::S(G)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • B(E)+S(F)
      • Vars
        • S(e);N_GUARD,SBLOCK,XP(J)::S(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(H);
      • Threat
        • B(E)+S(F)
      • Vars
        • S(e);N_GUARD,SBLOCK,XP(J)::S(G)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(K);
    • Threat
      • QAB(K),XB(f)
    • Vars
      • K(c);N_GUARD,S_FLIGHT::B(E)+S(F),DCHECK
      • R(b);N_GUARD,XP(I)::QAR2(K)
      • S(e);N_GUARD,SBLOCK,XP(J)::S(G)
      • R(b);N_GUARD::QAR2(K),XR(b)
      • R(b);SBLOCK::B(E)+S(F)
      • B(f);SBLOCK::R1(C)
      • B(f);N_GUARD::QAB(K),XB(f)
      • S(e);::B(E)+S(F)
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