MESON Chess Problem Database

Problem Display
PID: 96950 (8/1ppp4/7R/1B1kNK2/1P1p4/3p4/b2N4/8 w - - 0 1)

Belliboni, Caetano

Introducao ao Problema Ortodoxo, 1981

8/1ppp4/7R/1B1kNK2/1P1p4/3p4/b2N4/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Bc4#
    • 1...Bc4
      • 2.Bxc4#
  • Tries
    • 1.Sxd7?
      • 1...Bb1
        • 2.Bc4#
      • 1...Bc4
        • 2.Bxc4#
      • 1...b6
        • 2.Bc6#
      • 1...c5
        • 2.Sb6#
      • 1...c6
        • 2.Sb6#
      • 1...Bb3!
    • 1.Rh7?
      • threat
        • 2.Rxd7#
      • 1...Kd6
        • 2.Rxd7#
      • 1...d6!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Sf4#
      • 1...Bb1
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::B(C)
    • B(a);N_GUARD::B(C),XB(a)
  • Tries
    • Try
      • S(D);XP(g)
      • Vars
        • B(a);N_GUARD::B(C)
        • B(a);N_GUARD::B(C),XB(a)
        • P(e);N_GUARD::B(C)
        • P(f);N_GUARD::S(D)
      • Refutation
        • B(a);
    • Try
      • R(F);
      • Threat
        • R(F),XP(g)
      • Vars
        • K(d);P-FLIGHT::R1(F),XP(g)
      • Refutation
        • P(g);
  • Actual
    • S(D);XP(b)
    • Threat
      • S(D)
    • Vars
      • B(a);N_GUARD,P_PINS(D)::B(C)
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