MESON Chess Problem Database

Problem Display
PID: 75470 (1bQ2N2/8/1BBq4/2R5/2Pkn3/2pN2p1/bPRnK3/8 w - - 0 1)

Egorov, Gennady Sergeevich

Zhuravlev, Andrey Nikolaevich

9/11th Place, Match: East Russia - West Russia, 1997

1bQ2N2/8/1BBq4/2R5/2Pkn3/2pN2p1/bPRnK3/8

#2

10 + 8

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Se6#
    • 1...Qc7
      • 2.Se6#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qd8
      • 2.Se6#
    • 1...Bxc4
      • 2.Rd5#
    • 1...Sxc4
      • 2.Rd5#
    • 1...Sf2
      • 2.bxc3#
    • 1...Sg5
      • 2.bxc3#
    • 1...Sf6
      • 2.bxc3#
    • 1...cxb2
      • 2.Rd5#
  • Tries
    • 1.Qg4?
      • threat
        • 2.bxc3#
      • 1...cxb2
        • 2.Rd5#
      • 1...Qf4
        • 2.Se6#
      • 1...Sb1
        • 2.Qxe4#
      • 1...Qxc5!
    • 1.Qd8?
      • threat
        • 2.Se6#
      • 1...Bxc4
        • 2.Rd5#
      • 1...Sg5
        • 2.bxc3#
      • 1...Sxc5!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Rd5#
      • 1...Qxc5
        • 2.Se6#
      • 1...Sxc5
        • 2.bxc3#
      • 1...Qd5
        • 2.Rxd5#
      • 1...Sf2
        • 2.bxc3#
      • 1...Sg5
        • 2.bxc3#
      • 1...Sf6
        • 2.bxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD::S(J)
    • Q(g);N_GUARD::S(J),XQ(g)
    • B(a);P_PINS(D),SBLOCK,XP(E)::B(G)+R(F),DCHECK
    • S(b);SBLOCK,XP(E)::B(G)+R(F),DCHECK
    • S(f);N_GUARD::P(A),XP(c)
    • P(c);XP(A)::B(G)+R(F),DCHECK
  • Tries
    • Try
      • Q(I);P_PINS(f)
      • Threat
        • P(A),XP(c)
      • Vars
        • P(c);XP(A)::B(G)+R(F),DCHECK
        • Q(g);N_GUARD,N_SPINS(f)::S(J)
        • S(b);N_GUARD::QAR1(I),XS(f)
      • Refutation
        • Q(g);P_SPINQ(g),XR(F)
    • Try
      • Q(I);P_PINQ(g)
      • Threat
        • S(J)
      • Vars
        • B(a);P_PINS(D),SBLOCK,XP(E)::B(G)+R(F),DCHECK
        • S(f);N_GUARD::P(A),XP(c)
      • Refutation
        • S(f);P_SPINS(f),XR(F)
  • Actual
    • Q(I);
    • Threat
      • B(G)+R(F),DCHECK
    • Vars
      • Q(g);N_GUARD,P_SPINQ(g),XR(F)::S(J)
      • S(f);N_GUARD,P_SPINS(f),XR(F)::P(A),XP(c)
      • Q(g);::B(G)+R(F),DCHECK,XQ(g)
      • S(f);N_GUARD::P(A),XP(c)
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