MESON Chess Problem Database

Problem Display
PID: 259111 (3k2KQ/3q1ppp/8/1N1R4/BBR5/6r1/7r/bb6 w - - 0 1)

Sparke, Arthur M

Western Morning News, 1923

(First published on Sat May 5 1923)

3k2KQ/3q1ppp/8/1N1R4/BBR5/6r1/7r/bb6

#2

7 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Kxh7#
    • 1...Rc3
      • 2.Kxg7#
  • Tries
    • 1.Kf8?
      • threat
        • 2.Ba5#
        • 2.Be7#
      • 1...Qd6+
        • 2.Rxd6#
      • 1...Re2
        • 2.Ba5#
      • 1...Rh6
        • 2.Be7#
      • 1...Re3
        • 2.Ba5#
      • 1...Rg6
        • 2.Be7#
      • 1...Bc3
        • 2.Be7#
      • 1...Bd4
        • 2.Be7#
      • 1...Be5
        • 2.Be7#
      • 1...Bf6
        • 2.Ba5#
      • 1...Qxd5!
    • 1.Rxd7+?
      • 1...Ke8
        • 2.Sd6#
        • 2.Sc7#
      • 1...Kxd7!
  • Keys
    • 1.Sa7!
      • threat
        • 2.Rc8#
      • 1...Ke8
        • 2.Rc8#
      • 1...Qd6
        • 2.Kxf7#
      • 1...Rc2
        • 2.Kxh7#
      • 1...Rc3
        • 2.Kxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);::QAR(G)+K(F),XP(h)
    • R(d);::QAR(G)+K(F),XP(g)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);CHECK,OGATEB::R(E),XQ(e)
        • R(c);::B(B)
        • R(d);::B(B)
        • B(a);::B(B)
      • Refutation
        • Q(e);N_SPINQ(e),XR(E)
    • Try
      • R(E);CHECK,XQ(e)
      • Refutation
        • K(i);P-FLIGHT,XR(E)
  • Actual
    • S(D);
    • Threat
      • R1(C)
    • Vars
      • K(i);P-FLIGHT::R(C)
      • Q(e);::QAR(G)+K(F),XP(f)
      • R(c);::QAR(G)+K(F),XP(h)
      • R(d);::QAR(G)+K(F),XP(g)
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