MESON Chess Problem Database

Problem Display
PID: 12420 (6K1/8/1N2Q3/k1b5/8/1R6/5p2/8 w - - 0 1)

Ahlheim, Karl-Heinz

Die Schwalbe, 1979

6K1/8/1N2Q3/k1b5/8/1R6/5p2/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qb5#
        • 2.Qa4#
      • 1...Bxb6
        • 2.Ra3#
        • 2.Qb5#
      • 1...f1Q
        • 2.Qa4#
      • 1...f1B
        • 2.Qa4#
      • 1...Bb4!
    • 1.Qe8?
      • threat
        • 2.Qa4#
        • 2.Qb5#
        • 2.Qa8#
      • 1...Ka6
        • 2.Qa8#
      • 1...Bxb6
        • 2.Qb5#
      • 1...f1Q
        • 2.Qa4#
      • 1...f1B
        • 2.Qa4#
      • 1...Bb4!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Sc4#
        • 2.Qa4#
        • 2.Qb5#
        • 2.Qa8#
      • 1...Ka6
        • 2.Qa8#
      • 1...Bxb6
        • 2.Qb5#
      • 1...f1Q
        • 2.Qa4#
      • 1...f1B
        • 2.Qa4#
      • 1...Bb4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR1(C)
      • Refutation
        • B(c);
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
        • B(c);XS(B)::QAR1(C)
        • P(a);::QAR1(C)
      • Refutation
        • B(c);
  • Actual
    • Q(C);
    • Threat
      • DUALS(4)
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • B(c);XS(B)::QAR1(C)
      • P(a);::QAR1(C)
      • B(c);::S(B)
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