MESON Chess Problem Database

Problem Display
PID: 101442 (8/b5Q1/3NK2B/1rp5/N1PPR1BP/1p1k4/2p3p1/1n3b1n w - - 0 1)

Sparke, Arthur M

Good Companions (October), 1916

8/b5Q1/3NK2B/1rp5/N1PPR1BP/1p1k4/2p3p1/1n3b1n

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Bxe2#
    • 1...Sd2
      • 2.Re3#
    • 1...Sc3
      • 2.Sb2#
  • Keys
    • 1.Bf5!
      • threat
        • 2.Re1#
      • 1...cxd4
        • 2.Re5#
      • 1...Be2
        • 2.Rg4#
      • 1...Sd2
        • 2.Re3#
      • 1...Sc3
        • 2.Sb2#
      • 1...Sf2
        • 2.Qg3#
      • 1...Sg3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::B(E),XB(b)
    • S(a);SBLOCK::R1(D)
    • S(a);SBLOCK::S(A)
  • Actual
    • B(E);
    • Threat
      • B(E)+R(D)
    • Vars
      • P(i);SBLOCK,XP(C)::B(E)+R(D)
      • B(b);SBLOCK::B(E)+R(D)
      • S(a);SBLOCK::B(E)+R(D),DCHECK
      • S(a);SBLOCK::S(A)
      • S(c);N_GUARD::QAR(J)
      • S(c);N_GUARD::QAR(J),XS(c)
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