MESON Chess Problem Database

Problem Display
PID: 223475 (8/8/8/N7/5Q2/6N1/2k5/K7 w - - 0 1)

Dahl, Hans

Funkschach, 1926

8/8/8/N7/5Q2/6N1/2k5/K7

#2

4 + 1

5454 Near Snap 2020
3713 Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se4?
      • threat
        • 2.Qd2#
      • 1...Kd1
        • 2.Qd2#
      • 1...Kd3!
  • Keys
    • 1.Sf1!
      • threat
        • 2.Qd2#
      • 1...Kd1
        • 2.Qd2#
      • 1...Kc3
        • 2.Qd2#
        • 2.Qc4#
      • 1...Kd3
        • 2.Qc4#

Anticipated by 223473(1926), 201330(1926)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::QAB1(C)
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