MESON Chess Problem Database

Problem Display
PID: 161275 (2K2b1B/Q2N4/2pp4/2nk1q1R/2pn3N/2p1R3/3rp3/1b6 w - - 0 1)

Albrecht, Hermann

Bottroper Volkszeitung, 1938

(First published on Wed Dec 21 1938)

2K2b1B/Q2N4/2pp4/2nk1q1R/2pn3N/2p1R3/3rp3/1b6

#2

7 + 12

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Sb6#
      • 2.Sf6#
    • 1...Qxh5
      • 2.Sb6#
      • 2.Sf6#
    • 1...Sc2
      • 2.Rxf5#
    • 1...Sde6
      • 2.Sb6#
    • 1...Sd3
      • 2.Qxd4#
    • 1...Sce6
      • 2.Sf6#
  • Tries
    • 1.Sg2?
      • threat
        • 2.Sf4#
      • 1...Sde6
        • 2.Sb6#
      • 1...Sd3
        • 2.Qxd4#
      • 1...Sce6
        • 2.Sf6#
      • 1...Bh6!
    • 1.Rxf5+?
      • 1...Sxf5
        • 2.Sb6#
      • 1...Bxf5!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Sf4#
      • 1...Bh6
        • 2.Se7#
      • 1...Sde6
        • 2.Sb6#
      • 1...Sd3
        • 2.Qxd4#
      • 1...Sce6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(f);N_GUARD,S_CUTB(a)::R(C),XQ(i)
    • S(f);N_PINS(E)::S(E)
    • S(g);OGATE::QAR1(D),XS(f)
    • S(g);N_PINS(E)::S(E)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(f);N_PINS(E)::S(E)
        • S(g);OGATE::QAR1(D),XS(f)
        • S(g);N_PINS(E)::S(E)
      • Refutation
        • B(l);
    • Try
      • R(C);CHECK,N_SPINS(E),XQ(i)
      • Vars
        • S(f);XR(C)::S(E)
      • Refutation
        • B(a);P_PINS(E),XR(C)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • B(l);N_GUARD::S(B)
      • S(f);N_PINS(E)::S(E)
      • S(g);OGATE::QAR1(D),XS(f)
      • S(g);N_PINS(E)::S(E)
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