MESON Chess Problem Database

Problem Display
PID: 53075 (K1N5/3k4/3N4/8/5Q2/3B4/8/8 w - - 0 1)

Keller, Kurt

Comm., 06. Forderungsturnier der Schwalbe, 2003-2004

K1N5/3k4/3N4/8/5Q2/3B4/8/8

#2

5 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qf5#
  • Tries
    • 1.Kb7?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kd8!
    • 1.Sf7?
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kxc8
        • 2.Bf5#
      • 1...Ke8!
    • 1.Qe4?
      • 1...Kd8
        • 2.Qe7#
      • 1...Kc7!
    • 1.Qf7+?
      • 1...Kd8
        • 2.Qe7#
      • 1...Kc6!
  • Keys
    • 1.Sb7!
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kxc8
        • 2.Bf5#
      • 1...Ke8
        • 2.Bb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XS(E)::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT,XS(E)::B(A)
      • K(a);S_FLIGHT::B(A)
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