MESON Chess Problem Database

Problem Display
PID: 261961 (8/5q2/1pP5/2P1Pp2/pB1k1K2/1b2N3/4P3/1N6 w - - 0 1)

Mortensen, Jan Robert (aka 'Adamas')

Problemnoter, 1964

8/5q2/1pP5/2P1Pp2/pB1k1K2/1b2N3/4P3/1N6

#2

8 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...bxc5
      • 2.Bc3#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Sf3#
      • 1...Qd5
        • 2.Sxf5#
      • 1...Bd5
        • 2.Sc2#
      • 1...Qh5!
    • 1.Sa3?
      • threat
        • 2.Sb5#
      • 1...Bc4
        • 2.Sac2#
      • 1...b5
        • 2.Sxb5#
      • 1...Qc4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sb5#
      • 1...Qc4
        • 2.Sxf5#
      • 1...Bc4
        • 2.Sc2#
      • 1...b5
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);SBLOCK,XP(F)::B(D)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • Q(f);N_GUARD,SBLOCK::S(C),XP(d)
        • B(a);N_GUARD,SBLOCK::S(C)
      • Refutation
        • Q(f);
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • B(a);N_GUARD::S(A)
        • P(e);::S(A),XP(e)
      • Refutation
        • Q(f);
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • Q(f);N_GUARD,SBLOCK::S(C),XP(d)
      • B(a);N_GUARD,SBLOCK::S(C)
      • P(e);::S(A),XP(e)
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