MESON Chess Problem Database

Problem Display
PID: 275420 (1Q6/8/2pqN3/3k1B2/2N5/4B3/7p/7K w - - 0 1)

Schlatter, Eduard

Die Tat, 1952

(First published on Sat Feb 16 1952)

1Q6/8/2pqN3/3k1B2/2N5/4B3/7p/7K

#2

6 + 4

6490 yacpdb 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Sb6#
    • 1...Qg3
      • 2.Sb6#
    • 1...Qf4
      • 2.Sb6#
    • 1...Qe5
      • 2.Sb6#
    • 1...Qe7
      • 2.Sb6#
    • 1...Qf8
      • 2.Sb6#
    • 1...Qxe6
      • 2.Sb6#
    • 1...Qd7
      • 2.Sb6#
  • Tries
    • 1.Sf4+?
      • 1...Qxf4
        • 2.Sb6#
        • 2.Qg8#
      • 1...Kxc4!
  • Keys
    • 1.Sc5!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Qxc5
        • 2.Qg8#
      • 1...Qxb8
        • 2.Be6#
      • 1...Qg3
        • 2.Sb6#
        • 2.Be6#
      • 1...Qf4
        • 2.Sb6#
        • 2.Be6#
        • 2.Qg8#
      • 1...Qe5
        • 2.Sb6#
      • 1...Qc7
        • 2.Be6#
      • 1...Qe7
        • 2.Sb6#
      • 1...Qf8
        • 2.Sb6#
        • 2.Be6#
      • 1...Qe6
        • 2.Sb6#
        • 2.Bxe6#
      • 1...Qf6
        • 2.Sb6#
      • 1...Qg6
        • 2.Sb6#
      • 1...Qh6
        • 2.Sb6#
      • 1...Qd7
        • 2.Sb6#
      • 1...Qd8
        • 2.Be6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • Q(d);::S(C)
    • Q(d);XS(E)::S(C)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(b);S_FLIGHT,XS(C)
  • Actual
    • S(E);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • Q(d);N_GUARD,XS(E)::QAB(F)
      • Q(d);N_GUARD,XQ(F)::B(D)
      • Q(d);::S(C)
      • Q(d);N_GUARD::B(D)
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