MESON Chess Problem Database

Problem Display
PID: 168217 (3B2K1/q3P3/1r3NNp/2Qp1PkP/6B1/r1bR4/2n1p3/5R2 w - - 0 1)

Petite, Efren

Scacco!, 1999

3B2K1/q3P3/1r3NNp/2Qp1PkP/6B1/r1bR4/2n1p3/5R2

#2

11 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.e8S#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Sh7#
      • 1...Kxf6
        • 2.e8S#
      • 1...Rxf6
        • 2.Bxe2#
      • 1...Bxf6!
    • 1.Qg1?
      • threat
        • 2.Sh7#
      • 1...Kxf6
        • 2.e8S#
      • 1...Bxf6
        • 2.Bxe2#
      • 1...Rxf6!
    • 1.Qe3+?
      • 1...Kxf6
        • 2.e8S#
      • 1...Sxe3!
  • Keys
    • 1.Bxe2!
      • threat
        • 2.Sh7#
      • 1...Kxf6
        • 2.e8S#
      • 1...Rxf6
        • 2.Rg3#
      • 1...Bxf6
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);S_FLIGHT,XS(G)::P=S
  • Tries
    • Try
      • R(B);
      • Threat
        • S(G)
      • Vars
        • K(f);S_FLIGHT,XS(G)::P=S
        • R(g);SBLOCK,XS(G)::R(B)+B(C),XP(b)
      • Refutation
        • B(d);XS(G)
    • Try
      • Q(D);
      • Threat
        • S(G)
      • Vars
        • K(f);S_FLIGHT,XS(G)::P=S
        • B(d);SBLOCK,XS(G)::QAR(D)+B(C),XP(b)
      • Refutation
        • R(g);XS(G)
    • Try
      • Q(D);CHECK
      • Vars
        • K(f);S_FLIGHT,XS(G)::P=S
      • Refutation
        • S(a);XQ(D)
  • Actual
    • B(C);XP(b)
    • Threat
      • S(G)
    • Vars
      • K(f);S_FLIGHT,XS(G)::P=S
      • R(g);SBLOCK,XS(G)::R(B)
      • B(d);SBLOCK,XS(G)::QAR(D)
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Developed and maintained by Brian Stephenson.
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