MESON Chess Problem Database

Problem Display
PID: 44877 (2K1kB1N/2n1P1n1/8/4N3/8/8/4B3/8 w - - 0 1)

Speckmann, Werner

US Problem Bulletin, 1965

2K1kB1N/2n1P1n1/8/4N3/8/8/4B3/8

#2

6 + 3

3772 FIDE Album (1965-1967) 1976
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Bxb5#
    • 1...Sd5
      • 2.Bb5#
    • 1...Sa6
      • 2.Bb5#
    • 1...Sce6
      • 2.Bb5#
    • 1...Sa8
      • 2.Bb5#
    • 1...Sf5
      • 2.Bh5#
    • 1...Sh5
      • 2.Bxh5#
    • 1...Sge6
      • 2.Bh5#
  • Tries
    • 1.Kb8?
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sd5
        • 2.Bb5#
      • 1...Sce6
        • 2.Bb5#
      • 1...Sa8
        • 2.Bb5#
      • 1...Sf5
        • 2.Bh5#
      • 1...Sh5
        • 2.Bxh5#
      • 1...Sge6
        • 2.Bh5#
      • 1...Sa6+!
    • 1.Sc4?
      • threat
        • 2.Sd6#
      • 1...Sf5
        • 2.Bh5#
      • 1...Sb5!
    • 1.Sg4?
      • threat
        • 2.Sf6#
      • 1...Sd5
        • 2.Bb5#
      • 1...Sh5!
    • 1.Sd7?
      • threat
        • 2.Sf6#
      • 1...Sh5
        • 2.Bxh5#
      • 1...Sd5!
    • 1.Sef7?
      • threat
        • 2.Sd6#
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sf5!
    • 1.Shf7?
      • threat
        • 2.Sd6#
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sf5!
    • 1.Bd1?
      • 1...Sf5
        • 2.Bh5#
      • 1...Sd5
        • 2.Ba4#
      • 1...Sa6
        • 2.Ba4#
      • 1...Sce6
        • 2.Ba4#
      • 1...Sa8
        • 2.Ba4#
      • 1...Sh5
        • 2.Bxh5#
      • 1...Sge6
        • 2.Bh5#
      • 1...Sb5!
    • 1.Bc4?
      • threat
        • 2.Bf7#
      • 1...Sd5
        • 2.Bb5#
      • 1...Sce6
        • 2.Bb5#
      • 1...Sge6!
    • 1.Bg4?
      • threat
        • 2.Bd7#
      • 1...Sf5
        • 2.Bh5#
      • 1...Sge6
        • 2.Bh5#
      • 1...Sce6!
  • Keys
    • 1.Kb7!
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sd5
        • 2.Bb5#
      • 1...Sa6
        • 2.Bb5#
      • 1...Sce6
        • 2.Bb5#
      • 1...Sa8
        • 2.Bb5#
      • 1...Sf5
        • 2.Bh5#
      • 1...Sh5
        • 2.Bxh5#
      • 1...Sge6
        • 2.Bh5#

This anticipates 133137(1983)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::B(A),XS(a)
    • S(a);N_GUARD::B(A)
    • S(b);N_GUARD::B(A)
    • S(b);N_GUARD::B(A),XS(b)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • S(a);N_GUARD::B(A),XS(a)
        • S(a);N_GUARD::B(A)
        • S(b);N_GUARD::B(A)
        • S(b);N_GUARD::B(A),XS(b)
      • Refutation
        • S(a);CHECK
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(b);N_GUARD::B(A)
      • Refutation
        • S(a);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(a);N_GUARD::B(A)
      • Refutation
        • S(b);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(b);N_GUARD::B(A),XS(b)
      • Refutation
        • S(a);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(a);N_GUARD::B(A),XS(a)
      • Refutation
        • S(b);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • S(a);N_GUARD::B(A),XS(a)
      • Refutation
        • S(b);
    • Try
      • B(A);
      • Vars
        • S(b);N_GUARD::B(A)
        • S(a);N_GUARD::B(A)
        • S(b);N_GUARD::B(A),XS(b)
      • Refutation
        • S(a);
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • S(a);N_GUARD::B(A)
      • Refutation
        • S(b);
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • S(b);N_GUARD::B(A)
      • Refutation
        • S(a);
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • S(a);N_GUARD::B(A),XS(a)
      • S(a);N_GUARD::B(A)
      • S(b);N_GUARD::B(A)
      • S(b);N_GUARD::B(A),XS(b)
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