MESON Chess Problem Database

Problem Display
PID: 137401 (1b6/1Q6/2N1N2R/2pk4/2p5/4p3/8/7K w - - 0 1)

Kuskop, Friedrich Amandus Leopold

Die Schwalbe, 1929

1b6/1Q6/2N1N2R/2pk4/2p5/4p3/8/7K

#2

5 + 5

881 The Australasian Chess Review 1929

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Sf4#
  • Tries
    • 1.Sb4+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kd6!
    • 1.Sa5+?
      • 1...Kd6
        • 2.Sxc4#
      • 1...Ke5!
    • 1.Se5+?
      • 1...Kd6
        • 2.Sxc4#
        • 2.Sf7#
      • 1...Kxe5!
    • 1.Se7+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kd6!
    • 1.Scd8+?
      • 1...Kd6
        • 2.Sf7#
      • 1...Ke5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Sg5#
      • 1...Ke4
        • 2.Sxc5#
      • 1...Kxc6
        • 2.Sd4#
      • 1...Kd6
        • 2.Sed4#
        • 2.Sf4#
        • 2.Sg5#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sed8#
        • 2.Sf8#
      • 1...Bd6
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(d);P-FLIGHT::R(D)+S(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(E)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT::S(B),XP(b)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(d);P-FLIGHT,XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(E)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT::S(B)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+S(C)
    • Vars
      • K(d);S_FLIGHT::S(C),XP(c)
      • K(d);S_FLIGHT,XS(B)::R(D)+S(C),DCHECK
      • B(e);SBLOCK::QAB(E)
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