MESON Chess Problem Database

Problem Display
PID: 103108 (6B1/8/8/p7/p7/k2Np2p/n2B4/K7 w - - 0 1)

Lemarcis, N

Canadian Chess Chat, 1980

6B1/8/8/p7/p7/k2Np2p/n2B4/K7

#2

4 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Bxc1#
    • 1...Sc3
      • 2.Bc1#
    • 1...Sb4
      • 2.Bc1#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sc2#
      • 1...Sxb4
        • 2.Bc1#
      • 1...axb4!
    • 1.Bxe3?
      • 1...Sc1
        • 2.Bxc1#
        • 2.Bc5#
      • 1...Sc3
        • 2.Bc1#
        • 2.Bc5#
      • 1...Sb4
        • 2.Bc1#
      • 1...h2!
  • Keys
    • 1.Se1!
      • threat
        • 2.Sc2#
      • 1...Sb4
        • 2.Bc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD::B(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(a);N_GUARD,SBLOCK,XS(C)::B(B)
      • Refutation
        • P(f);XS(C)
    • Try
      • B(B);XP(c)
      • Vars
        • S(a);N_GUARD::B(B)
      • Refutation
        • P(d);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • S(a);N_GUARD,SBLOCK::B(B)
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