MESON Chess Problem Database

Problem Display
PID: 168275 (Q7/1r6/2R4N/3R3p/5n2/2N1pk1B/8/4B2K w - - 0 1)

Petite, Efren

Problemnoter, 1965

Q7/1r6/2R4N/3R3p/5n2/2N1pk1B/8/4B2K

#2

8 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...h4
      • 2.Bg4#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Bg2#
      • 1...Rb2
        • 2.Rb6#
      • 1...Rg7
        • 2.Rc7#
      • 1...e2!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Bg2#
      • 1...e2
        • 2.Rd3#
      • 1...Rb2
        • 2.Rb5#
      • 1...Rg7
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(d);N_GUARD::B(D)
  • Tries
    • Try
      • R(E);P_PINS(c)
      • Threat
        • B(D)
      • Vars
        • R(e);OGATEB::QAB(H)+R(F)
      • Refutation
        • P(a);
  • Actual
    • R(F);P_PINS(c)
    • Threat
      • B(D)
    • Vars
      • P(a);OGATEB::R(E)
      • R(e);OGATEB::QAB(H)+R(E)
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