MESON Chess Problem Database

Problem Display
PID: 70336 (2n1bN2/8/5kBp/5N1P/8/K5Q1/8/b1B5 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1950

2n1bN2/8/5kBp/5N1P/8/K5Q1/8/b1B5

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2+
      • 2.Bxb2#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Be5
      • 2.Qh4#
    • 1...Sb6
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qd6#
    • 1...Se7
      • 2.Qd6#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Qh4#
      • 1...Bxg6
        • 2.Qxg6#
      • 1...Bb2+!
    • 1.Qe1?
      • threat
        • 2.Sh7#
        • 2.Qe6#
      • 1...Bxg6
        • 2.Qe6#
      • 1...Be5
        • 2.Qh4#
      • 1...Bd7
        • 2.Sxd7#
        • 2.Sh7#
      • 1...Bf7
        • 2.Sd7#
        • 2.Sh7#
      • 1...Bb2+!
    • 1.Qe3?
      • threat
        • 2.Sh7#
        • 2.Qe6#
      • 1...Bb2+
        • 2.Bxb2#
      • 1...Bxg6
        • 2.Qe6#
      • 1...Bd7
        • 2.Sxd7#
        • 2.Sh7#
      • 1...Bf7
        • 2.Sd7#
        • 2.Sh7#
      • 1...Be5!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qe6#
      • 1...Bb2+
        • 2.Qxb2#
      • 1...Ke5
        • 2.Qe6#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Bf7
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(a);CHECK,N_GUARD::B(A),XB(a)
    • B(a);N_GUARD::QAB(C),XB(a)
    • B(a);SBLOCK::QAB(C)
    • S(d);N_GUARD::QAR2(C)
    • S(d);N_GUARD::QAR2(C),XS(d)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAB(C)
      • Vars
        • B(e);OGATE,XB(F)::QAR1(C),XB(e)
      • Refutation
        • B(a);CHECK
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(e);XB(F)::QAR1(C)
        • B(a);SBLOCK::QAB(C)
      • Refutation
        • B(a);CHECK
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);CHECK,N_GUARD::B(A),XB(a)
        • B(e);XB(F)::QAR1(C)
      • Refutation
        • B(a);
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • B(a);CHECK,N_GUARD::QAB(C),XB(a)
      • K(b);S_FLIGHT::QAR1(C)
      • B(e);N_GUARD::S(G),XB(e)
      • B(e);N_GUARD::S(G)
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