MESON Chess Problem Database

Problem Display
PID: 64328 (6R1/4B1bK/2N1p3/5p2/Rp3k2/5B2/2NpPn1P/8 w - - 0 1)

Svyatov, Gennadi

Vahlakov, Yuri Nikoleyevich

3rd Prize, Kozlov MT, 1981

6R1/4B1bK/2N1p3/5p2/Rp3k2/5B2/2NpPn1P/8

#2

9 + 7

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Bg5#
    • 1...Bb2
      • 2.Bg5#
    • 1...Bc3
      • 2.Bg5#
    • 1...Bd4
      • 2.Bg5#
    • 1...Be5
      • 2.Bg5#
    • 1...Bf8
      • 2.Bg5#
    • 1...Bh8
      • 2.Bg5#
  • Tries
    • 1.S2xb4?
      • threat
        • 2.Sd5#
      • 1...Ke3
        • 2.Sc2#
      • 1...Bd4
        • 2.Bg5#
      • 1...Se4!
    • 1.S6xb4?
      • threat
        • 2.Sd3#
      • 1...Ke5
        • 2.Sc6#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Bd4!
    • 1.Rxb4+?
      • 1...Bd4
        • 2.Bg5#
      • 1...Se4!
    • 1.Rxg7?
      • threat
        • 2.Bg5#
      • 1...Sh3
        • 2.Rxb4#
      • 1...Se4!
  • Keys
    • 1.Bxb4!
      • threat
        • 2.Bxd2#
      • 1...Kg5
        • 2.Be7#
      • 1...d1Q
        • 2.Bd2#
      • 1...d1S
        • 2.Bd2#
      • 1...d1B
        • 2.Bd2#
      • 1...d1R
        • 2.Bd2#
      • 1...Bc3
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • B(g);::B(G)
    • B(g);N_SPINP(c)::B(G)
  • Tries
    • Try
      • S(A);XP(c)
      • Threat
        • R(E)+S(A),DCHECK
      • Vars
        • K(d);S_FLIGHT::S(A)
        • B(g);::B(G)
      • Refutation
        • S(b);
    • Try
      • S(F);XP(c)
      • Threat
        • R(E)+S(F),DCHECK
      • Vars
        • K(d);S_FLIGHT::S(F)
        • S(b);::R(E)+S(F),DCHECK,XS(b)
      • Refutation
        • B(g);
    • Try
      • R(E);CHECK,XP(c)
      • Vars
        • B(g);P_SPINB(g)::B(G)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(I);XB(g)
      • Threat
        • B(G)
      • Vars
        • S(b);N_GUARD::R(E),XP(c)
      • Refutation
        • S(b);N_SPINP(c)
  • Actual
    • B(G);XP(c)
    • Threat
      • R(E)+B(G),DCHECK,XP(a)
    • Vars
      • K(d);P_SPINB(g),S_FLIGHT::B(G)
      • P(a);::R(E)+B(G),DCHECK
      • B(g);::R(E)+B(G),DCHECK
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