MESON Chess Problem Database

Problem Display
PID: 256521 (8/8/3Q4/2PB2NR/2pk4/P6K/8/2B5 w - - 0 1)

Jespersen, Karl Lorenz Jesper

Wiener Schachzeitung, 1899

8/8/3Q4/2PB2NR/2pk4/P6K/8/2B5

#2

8 + 2

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Ba2#
      • 2.Bb3#
      • 2.Be6#
      • 2.Bf7#
      • 2.Bg8#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Bh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Be4#
        • 2.Bc6#
        • 2.Be6#
        • 2.Bb7#
        • 2.Bf7#
        • 2.Ba8#
        • 2.Bg8#
      • 1...c3
        • 2.Ba2#
        • 2.Bb3#
        • 2.Be6#
        • 2.Bf7#
        • 2.Bg8#
      • 1...Kd3!
    • 1.Bxc4+?
      • 1...Kc3
        • 2.Qd3#
      • 1...Kxc4!
    • 1.Qg3?
      • threat
        • 2.Se6#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Kxc5!
    • 1.Qf4+?
      • 1...Kc3
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qd2#
        • 2.Qxc4#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Kxc5!
  • Keys
    • 1.Qa6!
      • 1...Kc3
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qxc4#
      • 1...Kxc5
        • 2.Se6#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Ke5
        • 2.Sf3#
      • 1...c3
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(10)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(E);CHECK,XP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(H)
      • Refutation
        • K(b);P-FLIGHT,XB(E)
    • Try
      • Q(H);
      • Threat
        • S(F)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(E)::QAR1(H)
      • Refutation
        • K(b);S_FLIGHT,XP(D)
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(H),XP(a)
        • K(b);OGATEB,P-FLIGHT,XB(E)::QAR1(H)
      • Refutation
        • K(b);S_FLIGHT,XP(D)
  • Actual
    • Q(H);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::QAR1(H),XP(a)
      • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::QAB1(H),XP(a)
      • K(b);N_GUARD,S_FLIGHT,XP(D)::S(F)
      • K(b);OGATEB,P-FLIGHT,XB(E)::QAR1(H)
      • K(b);N_GUARD,S_FLIGHT::R(G)+S(F),DCHECK
      • P(a);SBLOCK::S(F)
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