MESON Chess Problem Database

Problem Display
PID: 91899 (BKN1nn2/B2p4/3Pp1b1/4k3/2p3PQ/2bp2P1/8/8 w - - 0 1)

Herland, Sigmund

Deutsche Schachzeitung, 1908

BKN1nn2/B2p4/3Pp1b1/4k3/2p3PQ/2bp2P1/8/8

#2

8 + 9

16336 Problemes choisis composes par Sigmund Herland (Yaremska-Iliescu) 2001
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh5
      • 2.Qg5#
    • 1...Bf7
      • 2.Qg5#
    • 1...Sxd6
      • 2.Qh8#
    • 1...Sc7
      • 2.Qh8#
  • Tries
    • 1.Qh8+?
      • 1...Sg7
        • 2.Qxg7#
      • 1...Sf6!
    • 1.g5?
      • threat
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Bd2!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sxc4#
      • 1...Kd4
        • 2.Sxd7#
      • 1...Kxd6
        • 2.Sxc4#
      • 1...Sxd6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::QAR2(C)
    • S(h);N_GUARD,XP(D)::QAB(C)
    • S(h);N_GUARD::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB(C),XS(h)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • P(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(d);P-FLIGHT::QAR1(C)
      • Refutation
        • B(a);
  • Actual
    • S(H);
    • Threat
      • S(H),XP(c)
    • Vars
      • K(d);S_FLIGHT::B(E)+S(H),XP(g)
      • K(d);S_FLIGHT,XP(D)::S(H),XP(c)
      • S(h);N_GUARD,SBLOCK,XP(D)::QAB(C)
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