MESON Chess Problem Database

Problem Display
PID: 238707 (4R2K/5B2/5p2/1N1pbp1N/r2PkP2/5r1n/2PP2Q1/2n5 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Kopyl, Valery Volodimirovich

idee & form, 2011

4R2K/5B2/5p2/1N1pbp1N/r2PkP2/5r1n/2PP2Q1/2n5

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sc3#
      • 2.Sd6#
    • 1...Sxf4
      • 2.Sg3#
      • 2.Sxf6#
  • Tries
    • 1.Rd8?
      • threat
        • 2.Bxd5#
      • 1...Rxd4
        • 2.Sc3#
      • 1...Sxf4
        • 2.Sg3#
      • 1...Bd6!
    • 1.Qe2+?
      • 1...Re3
        • 2.Qxe3#
      • 1...Sxe2!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Bxd5#
      • 1...Rxd4
        • 2.Sd6#
      • 1...Sxf4
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(I);N_PINB(g)
      • Threat
        • B(H),XP(f)
      • Vars
        • R(d);SBLOCK,XP(D)::S(F)
        • S(c);SBLOCK,XP(E)::S(G)
      • Refutation
        • B(g);
    • Try
      • Q(C);CHECK,N_PINR(b)
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR1(C),XR(b)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • Q(C);N_PINR(b)
    • Threat
      • B(H),XP(f)
    • Vars
      • R(d);SBLOCK,XP(D)::S(F)
      • S(c);SBLOCK,XP(E)::S(G),XP(i)
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