MESON Chess Problem Database

Problem Display
PID: 70483 (B7/3p4/3B1K2/1N1N4/2n1k3/4P2p/4P3/3n4 w - - 0 1)

Paslack, Rainer

The Problemist Supplement, 2006

B7/3p4/3B1K2/1N1N4/2n1k3/4P2p/4P3/3n4

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sdb2
      • 2.Sbc3#
    • 1...Sf2
      • 2.Sbc3#
    • 1...Sc3
      • 2.Sbxc3#
    • 1...Sdxe3
      • 2.Sdc3#
    • 1...Scxe3
      • 2.Sdc3#
    • 1...Sxd6
      • 2.Sxd6#
  • Tries
    • 1.Bh2?
      • 1...Sdxe3
        • 2.Sdc3#
      • 1...Scxe3
        • 2.Sdc3#
      • 1...Sdb2
        • 2.Sbc3#
      • 1...Sf2
        • 2.Sbc3#
      • 1...Sc3
        • 2.Sbxc3#
      • 1...Scb2
        • 2.Sd6#
      • 1...Sd2
        • 2.Sd6#
      • 1...Sa3
        • 2.Sd6#
      • 1...Sa5
        • 2.Sd6#
      • 1...Se5
        • 2.Sd6#
      • 1...Sb6
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...d6!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Sdc3#
      • 1...Sdxe3
        • 2.Sbc3#
      • 1...Scxe3
        • 2.Sd6#
      • 1...Sc3
        • 2.Sbxc3#
        • 2.Sdxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • S(a);SBLOCK,XP(B)::B(G)+S(D),DCHECK
    • S(c);SBLOCK,XP(B)::B(G)+S(D),DCHECK
    • S(c);XB(E)::S(C),XS(c)
  • Tries
    • Try
      • B(E);
      • Vars
        • S(a);SBLOCK,XP(B)::B(G)+S(D),DCHECK
        • S(c);SBLOCK,XP(B)::B(G)+S(D),DCHECK
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
        • S(c);N_GUARD::S(C)
        • S(c);N_GUARD::S(C),XS(c)
      • Refutation
        • P(e);
  • Actual
    • B(E);
    • Threat
      • B(G)+S(D),DCHECK
    • Vars
      • S(a);N_GUARD,XP(B)::S(C)
      • S(c);N_GUARD,XP(B)::S(C)
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