MESON Chess Problem Database

Problem Display
PID: 75449 (7n/4pnB1/4R3/3KpkPp/R2p2r1/2PP1N1Q/4N3/8 w - - 0 1)

Ivanov, Vadim Aleksandrovich

Khramtsevich, Mikhail Nikolaevich

1/2 Prize, Rukhlis-50 TT, 1997-1999

7n/4pnB1/4R3/3KpkPp/R2p2r1/2PP1N1Q/4N3/8

#2

10 + 8

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg5
      • 2.Sh4#
    • 1...dxc3
      • 2.Sg3#
    • 1...e4
      • 2.dxe4#
  • Tries
    • 1.Bxe5?
      • threat
        • 2.Sg3#
        • 2.Sexd4#
      • 1...dxc3
        • 2.Sg3#
        • 2.Sed4#
        • 2.Rf4#
      • 1...h4
        • 2.Sexd4#
      • 1...Sxe5!
    • 1.Rxd4?
      • threat
        • 2.Sg3#
      • 1...e4
        • 2.dxe4#
      • 1...h4
        • 2.Qxg4#
      • 1...exd4!
  • Keys
    • 1.Qxh5!
      • 1...Rxg5
        • 2.Sh4#
      • 1...Sxg5
        • 2.Rxe5#
      • 1...dxc3
        • 2.Qxg4#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Rg1
        • 2.Sh4#
      • 1...Rg2
        • 2.Sh4#
      • 1...Rg3
        • 2.Sh4#
      • 1...Re4
        • 2.dxe4#
      • 1...Rf4
        • 2.Sg3#
      • 1...Rh4
        • 2.Sxh4#
      • 1...Sd6
        • 2.Rxe5#
      • 1...Sh6
        • 2.Rxe5#
      • 1...Sd8
        • 2.Rxe5#
      • 1...e4
        • 2.Sfxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • S(g);SBLOCK,XP(H)::S(D)
    • P(a);XP(B)::S(A)
    • P(c);OGATE::P(C),XP(c)
  • Tries
    • Try
      • B(J);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::S(A),XP(a)
      • Refutation
        • S(g);XB(J)
    • Try
      • R(F);XP(a)
      • Threat
        • S(A)
      • Vars
        • P(c);OGATE::P(C),XP(c)
        • P(e);N_GUARD::QAB1(E),XR(b)
      • Refutation
        • P(c);XR(F)
  • Actual
    • Q(E);N_PINR(b),XP(e)
    • Vars
      • R(b);N_GUARD,P_SPINR(b),XP(H)::S(D)
      • S(g);N_GUARD,P_SPINS(g),XP(H)::R1(I),XP(c)
      • P(a);XP(B)::QAB1(E),XR(b)
      • S(h);N_GUARD::QAB1(E),XS(h)
      • R(b);N_GUARD::S(D)
      • R(b);OGATE::P(C),XR(b)
      • R(b);N_GUARD,SBLOCK::S(A)
      • R(b);N_GUARD::S(D),XR(b)
      • S(g);N_GUARD::R1(I),XP(c)
      • P(c);N_GUARD,S_CUTR(b)::S(D),XP(a)
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