MESON Chess Problem Database

Problem Display
PID: 915 (4BBn1/2K5/8/pR1p1N2/p1k5/4p3/npP5/1Nb5 w - - 0 1)

Shire, David J

The Problemist Supplement, 1992

4BBn1/2K5/8/pR1p1N2/p1k5/4p3/npP5/1Nb5

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sa3#
    • 1...Sb4
      • 2.Rc5#
    • 1...d4
      • 2.Sd6#
  • Tries
    • 1.Bg7?
      • threat
        • 2.Sa3#
        • 2.Sd6#
      • 1...a3
        • 2.Sxa3#
        • 2.Sd6#
      • 1...d4
        • 2.Sd6#
      • 1...Sf6!
    • 1.Rxa5?
      • threat
        • 2.Bb5#
      • 1...Sc3
        • 2.Sa3#
      • 1...d4
        • 2.Bf7#
      • 1...Se7!
    • 1.Rb6?
      • threat
        • 2.Bb5#
      • 1...d4
        • 2.Bf7#
      • 1...Sc3
        • 2.Sa3#
      • 1...Se7!
    • 1.Rb7?
      • threat
        • 2.Bb5#
      • 1...d4
        • 2.Bf7#
      • 1...Sc3
        • 2.Sa3#
      • 1...Se7!
    • 1.Rb8?
      • threat
        • 2.Bb5#
      • 1...d4
        • 2.Bf7#
      • 1...Sc3
        • 2.Sa3#
      • 1...Se7!
  • Keys
    • 1.Bh5!
      • threat
        • 2.Be2#
      • 1...Kxb5
        • 2.Be2#
      • 1...Sc3
        • 2.Sa3#
      • 1...Sb4
        • 2.Rc5#
      • 1...e2
        • 2.Bxe2#
      • 1...d4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::S(A)
    • S(b);SBLOCK::R1(C)
    • P(h);SBLOCK::S(D)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::S(D)
      • Refutation
        • S(i);
    • Try
      • R(C);XP(g)
      • Threat
        • B(F)
      • Vars
        • S(b);SBLOCK::S(A)
        • P(h);OGATEB::B(F)
      • Refutation
        • S(i);
    • Try
      • R(C);
      • Threat
        • B(F)
      • Vars
        • P(h);OGATEB::B(F)
        • S(b);SBLOCK::S(A)
      • Refutation
        • S(i);
    • Try
      • R(C);
      • Threat
        • B(F)
      • Vars
        • P(h);OGATEB::B(F)
        • S(b);SBLOCK::S(A)
      • Refutation
        • S(i);
    • Try
      • R(C);
      • Threat
        • B(F)
      • Vars
        • P(h);OGATEB::B(F)
        • S(b);SBLOCK::S(A)
      • Refutation
        • S(i);
  • Actual
    • B(F);
    • Threat
      • B(F)
    • Vars
      • K(f);S_FLIGHT,XR(C)::B(F)
      • S(b);SBLOCK::S(A)
      • S(b);SBLOCK::R1(C)
      • P(d);::B(F),XP(d)
      • P(h);SBLOCK::S(D)
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