MESON Chess Problem Database

Problem Display
PID: 223480 (2Q4K/8/1p6/1BP1N3/3k1B2/2r1p3/1P6/8 w - - 0 1)

Dohrn-Luttgens, Julius

Funkschach, 1926

2Q4K/8/1p6/1BP1N3/3k1B2/2r1p3/1P6/8

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Kd5
        • 2.Qf5#
        • 2.Qc6#
      • 1...Ke4!
    • 1.Sc6+?
      • 1...Kxc5
        • 2.Qf5#
      • 1...Kd5
        • 2.Qf5#
      • 1...Ke4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Sf3#
        • 2.Sc6#
      • 1...Kxc5
        • 2.Sc6#
      • 1...Kd5
        • 2.Sf3#
        • 2.Sc6#
      • 1...Rxc5
        • 2.Sf3#
        • 2.Qd3#
      • 1...e2
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(D)::QAR(F)
        • K(c);P-FLIGHT::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XP(D)::QAR(F)+S(E)
      • P(b);::S(E)
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