MESON Chess Problem Database

Problem Display
PID: 223343 (8/8/1N5Q/4k3/3N4/2K5/8/8 w - - 0 1)

Springer, Franz

Funkschach, 1926

8/8/1N5Q/4k3/3N4/2K5/8/8

#2

4 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • 1...Ke4
        • 2.Qf4#
      • 1...Kf5!
    • 1.Sa4?
      • 1...Kd5
        • 2.Qe6#
      • 1...Ke4!
    • 1.Sc4+?
      • 1...Kd5
        • 2.Qc6#
      • 1...Ke4!
    • 1.Sd5?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Kxd5!
    • 1.Sd7+?
      • 1...Kd5
        • 2.Qc6#
        • 2.Qe6#
      • 1...Ke4!
  • Keys
    • 1.Kd2!
      • 1...Kxd4
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT,XS(B)::QAB1(D)
      • K(a);P-FLIGHT::QAR1(D)
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