MESON Chess Problem Database

Problem Display
PID: 276923 (n1N5/PR1p1B2/2k5/2N5/1K6/8/8/8 w - - 0 1)

Formanek, Bedrich

Pat a Mat, 2008

n1N5/PR1p1B2/2k5/2N5/1K6/8/8/8

#2

6 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Rb6#
    • 1...d5
      • 2.Be8#
    • 1...d6
      • 2.Se7#
  • Tries
    • 1.Kc4?
      • threat
        • 2.Bd5#
      • 1...d5+
        • 2.Bxd5#
      • 1...Sc7
        • 2.Rb6#
      • 1...Sb6+!
    • 1.Bb3?
      • 1...Sc7
        • 2.Rb6#
      • 1...d5
        • 2.Ba4#
      • 1...d6
        • 2.Se7#
      • 1...Sb6!
    • 1.Bc4?
      • 1...Sc7
        • 2.Rb6#
      • 1...d5
        • 2.Bb5#
      • 1...d6
        • 2.Se7#
      • 1...Sb6!
  • Keys
    • 1.Rxd7!
      • threat
        • 2.Bd5#
      • 1...Sb6
        • 2.Se7#
      • 1...Sc7
        • 2.Rd6#

This is after

After Paul Keres.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(c);N_GUARD,SBLOCK::R1(D)
    • P(b);OGATEB,SBLOCK::B(E)
    • P(b);SBLOCK::S(F)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • B(E)
      • Vars
        • P(b);CHECK::B(E),XP(b)
        • S(c);N_GUARD,SBLOCK::R1(D)
      • Refutation
        • S(c);CHECK
    • Try
      • B(E);
      • Vars
        • S(c);N_GUARD,SBLOCK::R1(D)
        • P(b);SBLOCK::B(E)
        • P(b);SBLOCK::S(F)
      • Refutation
        • S(c);
    • Try
      • B(E);
      • Vars
        • S(c);N_GUARD,SBLOCK::R1(D)
        • P(b);SBLOCK::B(E)
        • P(b);SBLOCK::S(F)
      • Refutation
        • S(c);
  • Actual
    • R(D);XP(b)
    • Threat
      • B(E)
    • Vars
      • S(c);SBLOCK::S(F)
      • S(c);SBLOCK::R1(D)
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