MESON Chess Problem Database

Problem Display
PID: 244921 (4N3/7p/K1P3br/3k1nR1/4pp2/1PQ1b3/8/8 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

Tidskrift for Schack, 1916

4N3/7p/K1P3br/3k1nR1/4pp2/1PQ1b3/8/8

#2

6 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Rxf5+?
      • 1...Ke6
        • 2.Qe5#
        • 2.Qf6#
      • 1...Bxf5!
    • 1.Qe5+?
      • 1...Kxc6
        • 2.Qb5#
      • 1...Kxe5!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qd6#
      • 1...Kc5
        • 2.Qd6#
      • 1...Bxe8
        • 2.Rxf5#
      • 1...Bc5
        • 2.Sc7#
      • 1...Bh5
        • 2.Rxf5#
      • 1...Bf7
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XS(e)
      • Refutation
        • B(f);P_PINP(E),XR(C)
    • Try
      • Q(B);CHECK,N_PINS(e)
      • Vars
        • K(d);OGATE,S_FLIGHT,XP(E)::QAB1(B)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(e),XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(d);P-FLIGHT::QAB1(B)
      • B(f);N_GUARD,XS(F)::R(C),XS(e)
      • B(a);SBLOCK::S(F)
      • B(f);N_GUARD::R(C),XS(e)
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