MESON Chess Problem Database

Problem Display
PID: 43095 (3n4/n5B1/4p3/1p1NR3/3k1pN1/1P6/4P1r1/2RK2bB w - - 0 1)

Shavirin, Valery Mikhailovich

3rd Prize, Sukharev-90 JT, 2001-2002

3n4/n5B1/4p3/1p1NR3/3k1pN1/1P6/4P1r1/2RK2bB

#2

9 + 8

15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Rxe6#
    • 1...Rh2
      • 2.Rxe6#
    • 1...Rg3
      • 2.Rxe6#
    • 1...b4
      • 2.Rc4#
    • 1...exd5
      • 2.Re3#
      • 2.Re6#
      • 2.Re7#
      • 2.Re8#
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Rxe6#
      • 1...Rxe2
        • 2.Re4#
        • 2.Rd5#
      • 1...Rxg4
        • 2.Re4#
      • 1...Sdc6
        • 2.Sxe6#
      • 1...Sf7
        • 2.Sxe6#
      • 1...Sac6!
    • 1.Rg5+?
      • 1...Ke4
        • 2.Sc3#
      • 1...e5!
    • 1.Rh5+?
      • 1...Ke4
        • 2.Sc3#
      • 1...e5!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Rxe6#
      • 1...Rxe2
        • 2.Rd5#
      • 1...Rxg4
        • 2.Re4#
      • 1...Sac6
        • 2.Sxb5#
      • 1...Sdc6
        • 2.Sxe6#
      • 1...Sf7
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(b);::B(I)+R(H),XP(f)
    • P(e);N_GUARD::R1(A)
  • Tries
    • Try
      • S(G);XP(d)
      • Threat
        • B(I)+R(H),XP(f)
      • Vars
        • R(b);XS(F)::B(I)+R(H),DCHECK
        • S(h);N_GUARD::S(G),XP(f)
      • Refutation
        • S(g);
    • Try
      • R(H);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(b)::S(G)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • R(H);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(b)::S(G)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • S(G);
    • Threat
      • B(I)+R(H),XP(f)
    • Vars
      • R(b);XP(D)::B(I)+R(H),DCHECK
      • R(b);XS(F)::B(I)+R(H),DCHECK
      • S(g);N_GUARD::S(G),XP(e)
      • S(h);N_GUARD::S(G),XP(f)
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