MESON Chess Problem Database

Problem Display
PID: 21239 (K2nN3/B3pn2/p7/1p1k4/3N1P2/3P1p1B/8/8 w - - 0 1)

Tolosa y Carreras, Jose

Problemas de Ajedrez, 1917

K2nN3/B3pn2/p7/1p1k4/3N1P2/3P1p1B/8/8

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Sc7#
    • 1...Sc6
      • 2.Be6#
    • 1...Se6
      • 2.Bxe6#
    • 1...Sb7
      • 2.Be6#
    • 1...f2
      • 2.Bg2#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Sb4#
      • 1...Kc6
        • 2.Sb4#
      • 1...Sc6
        • 2.Se3#
      • 1...b4
        • 2.Sxb4#
      • 1...a5!
    • 1.Bf5?
      • threat
        • 2.Be4#
      • 1...Sd6
        • 2.Sc7#
      • 1...Sg5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sxe7#
      • 1...Kc6
        • 2.Sxe7#
      • 1...Ke6
        • 2.Se3#
      • 1...Sc6
        • 2.Se3#
        • 2.Sc7#
      • 1...e5
        • 2.Se7#
      • 1...e6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(f);SBLOCK::S(G)
    • S(g);N_GUARD::B(B)
    • S(g);N_GUARD::B(B),XS(g)
    • P(a);OGATEB::B(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • K(c);S_FLIGHT::S(C)
        • S(g);SBLOCK::S(C)
        • P(b);::S(C),XP(b)
      • Refutation
        • P(d);
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • S(f);SBLOCK::S(G)
      • Refutation
        • S(f);
  • Actual
    • S(C);
    • Threat
      • S(C),XP(e)
    • Vars
      • K(c);S_FLIGHT::S(C),XP(e)
      • K(c);S_FLIGHT::B(B)+S(C)
      • P(e);::S(C)
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