MESON Chess Problem Database

Problem Display
PID: 102493 (3BB2n/p3r1r1/Rb3k2/5Pp1/6P1/4Q3/b7/4K2R w K - 0 1)

Dupuis, Etienne

Europe Echecs, 1998

3BB2n/p3r1r1/Rb3k2/5Pp1/6P1/4Q3/b7/4K2R

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg6
      • 2.Qxe7#
    • 1...Rg8
      • 2.Qxe7#
    • 1...Bb1
      • 2.Qe6#
    • 1...Be6
      • 2.Qxe6#
    • 1...Bf7
      • 2.Bxe7#
      • 2.Qxe7#
    • 1...Sf7
      • 2.Bxe7#
      • 2.Qxe7#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qd4#
        • 2.Qc3#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sf7
        • 2.Bxe7#
        • 2.Qxe7#
      • 1...Sg6!
    • 1.Rh6+?
      • 1...Rg6
        • 2.Qxe7#
      • 1...Sg6!
    • 1.Rxb6+?
      • 1...Be6
        • 2.Rxe6#
        • 2.Qd4#
        • 2.Qc3#
        • 2.Qxe6#
      • 1...axb6!
  • Keys
    • 1.0-0!
      • threat
        • 2.Qd4#
      • 1...Sg6
        • 2.fxg6#
      • 1...Be6
        • 2.fxe6#
      • 1...Sf7
        • 2.Bxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::QAB1(C),XR(f)
    • B(a);N_GUARD::QAR1(C)
    • B(a);N_GUARD,N_PINQ(C),N_SPINB(c)::QAR1(C),XB(a)
  • Tries
    • Try
      • K(A);N_SPINQ(C),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD,N_SPINB(c)::QAR1(C),XB(a)
      • Refutation
        • S(h);
    • Try
      • R(B);CHECK
      • Vars
        • R(g);N_SPINR(f),P_SPINR(g)::QAB1(C),XR(f)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • R(F);CHECK,XB(c)
      • Refutation
        • P(e);XR(F)
  • Actual
    • K(A);0-0
    • Threat
      • QAB(C)
    • Vars
      • S(h);OGATE::R(B)+P(E),XS(h)
      • B(a);N_SPINB(c),OGATE::R(B)+P(E),XB(a)
      • S(h);S_CUTR(g)::B(G),XR(f)
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Developed and maintained by Brian Stephenson.
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