MESON Chess Problem Database

Problem Display
PID: 102046 (R5B1/2p2N2/1pK5/8/1rk1P2R/P1pn4/6b1/B1N3r1 w - - 0 1)

Godbout, Alain J

Canadian Chess Championship, 1980

R5B1/2p2N2/1pK5/8/1rk1P2R/P1pn4/6b1/B1N3r1

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4+
      • 2.Rxe4#
    • 1...c2
      • 2.Se5#
      • 2.Sg5#
      • 2.Sd6#
      • 2.Sh6#
      • 2.Sd8#
      • 2.Sh8#
  • Keys
    • 1.Rd8!
      • threat
        • 2.Se5#
        • 2.Sg5#
        • 2.Sh6#
        • 2.Sh8#
      • 1...Bxe4+
        • 2.Rxe4#
      • 1...Se5+
        • 2.Sxe5#
      • 1...Rf1
        • 2.Se5#
      • 1...Rb5
        • 2.Se5#
      • 1...Bf1
        • 2.Se5#
        • 2.Sg5#
      • 1...Bh1
        • 2.Se5#
        • 2.Sg5#
      • 1...Bf3
        • 2.Se5#
        • 2.Sg5#
      • 1...Bh3
        • 2.Se5#
      • 1...Sf4
        • 2.Se5#
      • 1...Sc5
        • 2.Se5#

There are these versions: 116135

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(b);CHECK,OGATE,P_SPINB(b),XP(D)::R(E),XB(b)
  • Actual
    • R(H);
    • Threat
      • DUALS(4)
    • Vars
      • B(b);CHECK,OGATE,P_SPINB(b),XP(D)::R(E),XB(b)
      • S(d);CHECK::B(I)+S(G),DCHECK,XS(d)
      • R(a);::B(I)+S(G),DCHECK
      • R(e);::B(I)+S(G),DCHECK
      • B(b);N_PINP(D)::B(I)+S(G),DCHECK
      • S(d);::B(I)+S(G),DCHECK
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