MESON Chess Problem Database

Problem Display
PID: 222908 (8/4NK2/5N2/4k3/8/8/8/2Q5 w - - 0 1)

Springer, Franz

Funkschach, 1926

8/4NK2/5N2/4k3/8/8/8/2Q5

#2

4 + 1

5454 Near Snap 2020
15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qc6#
      • 1...Kd4!
    • 1.Sfd5?
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kd4!
    • 1.Qc3+?
      • 1...Kd6
        • 2.Sf5#
        • 2.Sc8#
      • 1...Kf4!
  • Keys
    • 1.Sed5!
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kd6
        • 2.Qc7#

This anticipates 227921(1926), 30940(1937), 214872(1975), 227343(1984), 137118(1992), 245851(2002)

FEATURES

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