MESON Chess Problem Database

Problem Display
PID: 196994 (1b6/r2b4/1p2p3/pp6/rP6/k4BQK/N2R1B2/R7 w - - 0 1)

Sparke, Arthur M

British Chess Magazine, 1919

1b6/r2b4/1p2p3/pp6/rP6/k4BQK/N2R1B2/R7

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Bd5#
    • 1...Rxb4
      • 2.Sc1#
    • 1...Rc7
      • 2.Bc6#
    • 1...axb4
      • 2.Sc1#
    • 1...e5+
      • 2.Bg4#
  • Tries
    • 1.Qe5?
      • threat
        • 2.Rd3#
        • 2.Qb2#
        • 2.Qc3#
        • 2.Qe3#
      • 1...Kb3
        • 2.Qc3#
      • 1...Rxb4
        • 2.Sc1#
      • 1...axb4
        • 2.Sc1#
        • 2.Qb2#
      • 1...Rc7
        • 2.Qb2#
      • 1...Bxe5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rd3#
      • 1...e5+
        • 2.Bg4#
      • 1...Kb3
        • 2.Bd5#
      • 1...Rxb4
        • 2.Sc1#
      • 1...axb4
        • 2.Sc1#
      • 1...Rc7
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR(F)+B(E),DCHECK
    • R(b);SBLOCK,XP(H)::R(A)+S(B)
    • R(g);S_CUTB(i)::QAR(F)+B(E)
    • P(c);SBLOCK,XP(H)::R(A)+S(B)
    • P(f);CHECK,S_CUTB(i)::QAR(F)+B(E)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(4)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
        • R(b);SBLOCK,XP(H)::R(A)+S(B)
        • R(g);::QAB1(F)
      • Refutation
        • B(i);XQ(F)
  • Actual
    • B(D);
    • Threat
      • R(C)
    • Vars
      • P(f);CHECK,S_CUTB(i)::QAR(F)+B(E)
      • K(a);P-FLIGHT::QAR(F)+B(E),DCHECK
      • R(b);SBLOCK,XP(H)::R(A)+S(B)
      • P(c);SBLOCK,XP(H)::R(A)+S(B)
      • R(g);S_CUTB(i)::QAR(F)+B(E)
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