MESON Chess Problem Database

Problem Display
PID: 147015 (6B1/5Q2/p3NB2/4R3/1Pp1p2b/Knkp4/bR6/5r2 w - - 0 1)

Petite, Efren

Australian Chess Problem Magazine, 1994

6B1/5Q2/p3NB2/4R3/1Pp1p2b/Knkp4/bR6/5r2

#2

8 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qxc4#
      • 1...Sa1
        • 2.Rg5#
      • 1...Sc1
        • 2.Rg5#
      • 1...Sd2
        • 2.Rg5#
      • 1...Sd4
        • 2.Sd5#
      • 1...Sa5
        • 2.Rg5#
      • 1...Sc5
        • 2.Rg5#
      • 1...Kd4!
    • 1.Rf5+?
      • 1...Sd4
        • 2.Bxd4#
      • 1...Bxf6!
    • 1.Rg5+?
      • 1...Sd4
        • 2.Bxd4#
      • 1...Rxf6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qxc4#
      • 1...Kd4
        • 2.Rxe4#
      • 1...Sa1
        • 2.Rf5#
      • 1...Sc1
        • 2.Rf5#
      • 1...Sd2
        • 2.Rf5#
      • 1...Sd4
        • 2.Sxe4#
      • 1...Sa5
        • 2.Rf5#
      • 1...Sc5
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(G),XP(f)
      • Vars
        • S(c);N_GUARD::B(F)+R(D)
        • S(c);SBLOCK::S(E)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(F),XS(c)
      • Refutation
        • B(h);XB(F)
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(F),XS(c)
      • Refutation
        • R(a);XB(F)
  • Actual
    • S(E);
    • Threat
      • QAR1(G),XP(f)
    • Vars
      • K(d);S_FLIGHT::B(F)+R(D),DCHECK,XP(g)
      • S(c);N_GUARD::B(F)+R(D)
      • S(c);SBLOCK::S(E),XP(g)
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