MESON Chess Problem Database

Problem Display
PID: 129756 (8/B1Kb4/k1p5/1N1B4/p7/2Q5/8/n7 w - - 0 1)

Cumpe, Josef

Sokolske besedy, 1931

8/B1Kb4/k1p5/1N1B4/p7/2Q5/8/n7

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb5
      • 2.Bc4#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Qa5#
      • 1...Kxb5
        • 2.Bc4#
        • 2.Qa5#
        • 2.Qc4#
      • 1...Sb3!
    • 1.Qd4?
      • threat
        • 2.Qb6#
        • 2.Qxa4#
      • 1...Kxb5
        • 2.Qb6#
      • 1...cxb5
        • 2.Qb6#
      • 1...Sb3
        • 2.Qb6#
      • 1...a3
        • 2.Qb6#
        • 2.Qa4#
      • 1...c5
        • 2.Qxa4#
      • 1...Ka5!
  • Keys
    • 1.Kb8!
      • threat
        • 2.Sc7#
      • 1...Kxb5
        • 2.Bc4#
      • 1...cxb5
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(B)::B(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT,XS(B)::QAR1(A)
        • P(d);XS(B)::QAR1(A)
        • S(a);::QAR1(A)
        • P(d);::QAR2(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • S(B)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(B)::B(C)
      • P(d);OGATE,SBLOCK,XS(B)::B(C)
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