MESON Chess Problem Database

Problem Display
PID: 101986 (6r1/1P1Qp2b/2R5/b4BRp/4pNp1/2P1PN2/1K1P1B2/3k4 w - - 0 1)

Boyer, Jean-Pierre

1st HM., Themes-64, 1970

6r1/1P1Qp2b/2R5/b4BRp/4pNp1/2P1PN2/1K1P1B2/3k4

#2

12 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc3+
      • 2.dxc3#
  • Tries
    • 1.Be6?
      • threat
        • 2.Bb3#
      • 1...Bxc3+
        • 2.dxc3#
      • 1...exf3!
    • 1.Rxh5?
      • threat
        • 2.Rh1#
      • 1...Bxc3+
        • 2.dxc3#
      • 1...gxf3!
  • Keys
    • 1.Rcg6!
      • threat
        • 2.Qa4#
      • 1...Bxc3+
        • 2.dxc3#
      • 1...exf3
        • 2.Bc2#
      • 1...gxf3
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(d);CHECK,OGATE,XP(D)::QAR(L)+P(B),XB(d)
  • Tries
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • B(d);CHECK,OGATE,XP(D)::QAR(L)+P(B),XB(d)
      • Refutation
        • P(b);XS(F)
    • Try
      • R(I);XP(e)
      • Threat
        • R(I)
      • Vars
        • B(d);CHECK,OGATE,XP(D)::QAR(L)+P(B),XB(d)
      • Refutation
        • P(c);XS(F)
  • Actual
    • R(J);
    • Threat
      • QAB(L)
    • Vars
      • B(d);CHECK,OGATE,XP(D)::QAR(L)+P(B),XB(d)
      • P(b);OGATE,XS(F)::B(H)
      • P(c);OGATE,XS(F)::R(I)
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