MESON Chess Problem Database

Problem Display
PID: 46124 (6bK/3Q2p1/2ppp3/r2kN1NR/Rn1P1Bpb/q1pP4/4B3/5n2 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Place, Moscow Championship, 1999

6bK/3Q2p1/2ppp3/r2kN1NR/Rn1P1Bpb/q1pP4/4B3/5n2

#2

10 + 13

56 The Problemist 2002
145 StrateGems 2003
6166 FIDE Album (1998-2000) 2007
6167 Viktor Chepizhny 2007
56 The Problemist 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qxc6#
    • 1...Sc2
      • 2.Qxc6#
    • 1...Sxd3
      • 2.Qxc6#
    • 1...Sa6
      • 2.Qxc6#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qxd6#
      • 1...Sxd3
        • 2.Sb6#
      • 1...Sa2
        • 2.Sb6#
      • 1...Sc2
        • 2.Sb6#
      • 1...Sa6
        • 2.Sb6#
      • 1...Kxd4!
    • 1.Sxg4?
      • threat
        • 2.Qxd6#
      • 1...Kxd4
        • 2.Sf3#
      • 1...Sxd3
        • 2.Bf3#
      • 1...Sa2
        • 2.Bf3#
      • 1...Sc2
        • 2.Bf3#
      • 1...Sa6
        • 2.Bf3#
      • 1...e5!
    • 1.Se4?
      • threat
        • 2.Qxd6#
      • 1...Kxd4
        • 2.Sxc6#
      • 1...Sxd3
        • 2.Qxc6#
      • 1...Sa2
        • 2.Qxc6#
      • 1...Sc2
        • 2.Qxc6#
      • 1...Sa6
        • 2.Qxc6#
      • 1...Be7!
    • 1.Qxc6+?
      • 1...Kxd4
        • 2.Qc4#
      • 1...Sxc6!
  • Keys
    • 1.Sef7!
      • threat
        • 2.Qxd6#
      • 1...Kxd4
        • 2.Sxe6#
      • 1...Sxd3
        • 2.Qxe6#
      • 1...Sa2
        • 2.Qxe6#
      • 1...Sc2
        • 2.Qxe6#
      • 1...Sa6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAB1(I),XP(i)
    • S(d);N_GUARD,XP(B)::QAB1(I),XP(i)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(I),XP(j)
      • Vars
        • S(d);XP(B)::S(F)
        • S(d);::S(F)
      • Refutation
        • K(h);P-FLIGHT,XP(D)
    • Try
      • S(F);XP(e)
      • Threat
        • QAR1(I),XP(j)
      • Vars
        • K(h);P-FLIGHT,P_SPINS(d),XP(D)::S(G)
        • S(d);XP(B)::B(A)
        • S(d);::B(A)
      • Refutation
        • P(k);
    • Try
      • S(G);
      • Threat
        • QAR1(I),XP(j)
      • Vars
        • K(h);P-FLIGHT,P_SPINS(d),XP(D)::S(F),XP(i)
        • S(d);N_GUARD,XP(B)::QAB1(I),XP(i)
        • S(d);N_GUARD::QAB1(I),XP(i)
      • Refutation
        • B(f);
    • Try
      • Q(I);CHECK,N_PINP(j),XP(i)
      • Vars
        • K(h);P-FLIGHT,P_SPINS(d),XP(D)::QAR1(I)
      • Refutation
        • S(d);XQ(I)
  • Actual
    • S(F);
    • Threat
      • QAR1(I),XP(j)
    • Vars
      • K(h);P-FLIGHT,P_SPINS(d),XP(D)::S(G),XP(k)
      • S(d);XP(B)::QAB1(I),XP(k)
      • S(d);::QAB1(I),XP(k)
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