MESON Chess Problem Database

Problem Display
PID: 157525 (8/8/4B2Q/4k3/8/5K2/8/8 w - - 0 1)

Zumbroich, Josef

Die Schwalbe, 1942

8/8/4B2Q/4k3/8/5K2/8/8

#2

3 + 1

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qe3#
  • Tries
    • 1.Ke2?
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6!
    • 1.Kf2?
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6!
    • 1.Ba2?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5!
    • 1.Bb3?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5!
    • 1.Bg8?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);P-FLIGHT::QAR1(C)
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