MESON Chess Problem Database

Problem Display
PID: 224829 (6B1/2pp2B1/2p5/K1k2p2/p7/P4P2/3N4/5N1Q w - - 0 1)

Bayer, Konrad

Wiener Schachzeitung, 1888

6B1/2pp2B1/2p5/K1k2p2/p7/P4P2/3N4/5N1Q

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Se4#
    • 1...d6
      • 2.Qg1#
  • Tries
    • 1.Bf8+?
      • 1...d6
        • 2.Qg1#
      • 1...Kd4!
    • 1.Qh2?
      • 1...f4
        • 2.Se4#
      • 1...d6
        • 2.Qg1#
        • 2.Qf2#
      • 1...d5!
    • 1.Qh4?
      • threat
        • 2.Qb4#
        • 2.Qd4#
      • 1...d5
        • 2.Bf8#
        • 2.Qe7#
        • 2.Qb4#
      • 1...f4
        • 2.Se4#
      • 1...Kd6!
    • 1.Qh6?
      • 1...f4
        • 2.Se4#
      • 1...d6
        • 2.Qe3#
      • 1...d5!
    • 1.f4?
      • 1...Kd6
        • 2.Bf8#
      • 1...d6
        • 2.Qg1#
      • 1...d5!
  • Keys
    • 1.Qh8!
      • 1...Kd6
        • 2.Bf8#
      • 1...d5
        • 2.Bf8#
      • 1...f4
        • 2.Se4#
      • 1...d6
        • 2.Bd4#

There are these versions: 224830

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::S(C)
    • P(f);SBLOCK::QAB(B)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(c);N_GUARD::S(C)
      • Refutation
        • P(f);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);N_GUARD::S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(c);N_GUARD::S(C)
        • P(f);SBLOCK::QAB(B)
      • Refutation
        • P(f);
    • Try
      • P(E);
      • Vars
        • K(b);S_FLIGHT::B(G)
        • P(f);SBLOCK::QAB(B)
      • Refutation
        • P(f);
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::B(G)
      • P(f);N_GUARD::B(G)
      • P(c);N_GUARD::S(C)
      • P(f);SBLOCK::B(G)
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