MESON Chess Problem Database

Problem Display
PID: 177943 (1R6/1P1P4/2B3p1/3Rr3/3p1pq1/K1kPN1p1/5N2/2B5 w - - 0 1)

Dyachuk, Vasyl Vasilovich

4th Comm., Sahs (Latvia), 1989

1R6/1P1P4/2B3p1/3Rr3/3p1pq1/K1kPN1p1/5N2/2B5

#2

10 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Rc5#
    • 1...Re4
      • 2.Rc5#
    • 1...Re6
      • 2.Rc5#
    • 1...Re7
      • 2.Rc5#
    • 1...Re8
      • 2.Rc5#
  • Tries
    • 1.Ba4?
      • threat
        • 2.Rc8#
      • 1...Qxd7
        • 2.Sed1#
      • 1...Rxd5
        • 2.Sxd5#
      • 1...Qe6
        • 2.Sed1#
      • 1...Re6
        • 2.Rc5#
      • 1...Re8
        • 2.Rc5#
      • 1...gxf2!
    • 1.Rc8?
      • threat
        • 2.Ba4#
        • 2.Bb5#
      • 1...Qxd7
        • 2.Bxd7#
      • 1...Rxd5
        • 2.Bxd5#
      • 1...gxf2
        • 2.Bb5#
      • 1...Re6
        • 2.Rc5#
      • 1...Re8
        • 2.Rc5#
      • 1...Qe6!
  • Keys
    • 1.Bb5!
      • threat
        • 2.Rc8#
      • 1...Qxd7
        • 2.Sfd1#
      • 1...Rxd5
        • 2.Se4#
      • 1...Qe6
        • 2.Sfd1#
      • 1...Re6
        • 2.Rc5#
      • 1...Re8
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD,XS(E)::R(F)
    • R(f);N_GUARD::R(F)
  • Tries
    • Try
      • B(G);
      • Threat
        • R(J)
      • Vars
        • Q(e);N_GUARD,XP(I)::S(E)
        • R(f);XR(F)::S(E),XR(f)
        • Q(e);N_GUARD::S(E)
        • R(f);N_GUARD::R(F)
      • Refutation
        • P(b);XS(B)
    • Try
      • R(J);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);OGATE,XP(I)::R(J)+B(G),XQ(e)
        • R(f);OGATE,XR(F)::R(J)+B(G),XR(f)
        • P(b);XS(B)::R(J)+B(G)
        • R(f);N_GUARD::R(F)
      • Refutation
        • Q(e);
  • Actual
    • B(G);
    • Threat
      • R(J)
    • Vars
      • Q(e);N_GUARD,XP(I)::S(B)
      • R(f);N_GUARD,XR(F)::S(B)
      • Q(e);N_GUARD::S(B)
      • R(f);N_GUARD::R(F)
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