MESON Chess Problem Database

Problem Display
PID: 102286 (4n3/p7/Q2P2K1/2pkp3/1p6/4P1NB/3P4/8 w - - 0 1)

Torngren, Pehr Hendrik

Sydsvenska Dagbladet Snallposten, 1927

4n3/p7/Q2P2K1/2pkp3/1p6/4P1NB/3P4/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bd7?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qc6#
      • 1...e4!
    • 1.Qb7+?
      • 1...Kxd6
        • 2.Se4#
        • 2.Qd7#
      • 1...Kc4!
  • Keys
    • 1.Se4!
      • 1...Kxe4
        • 2.Bg2#
      • 1...Sxd6
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sc7
        • 2.Sf6#
      • 1...Sg7
        • 2.Sf6#
      • 1...b3
        • 2.Sc3#
      • 1...c4
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR2(E)
      • Vars
        • P(b);::QAB1(E)
      • Refutation
        • P(d);
    • Try
      • Q(E);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(C)::B(D)
      • S(f);N_GUARD,XP(F)::S(C)
      • S(f);N_GUARD::S(C),XS(f)
      • S(f);N_GUARD::S(C)
      • P(a);N_GUARD::S(C)
      • P(b);SBLOCK::QAB(E)
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