MESON Chess Problem Database

Problem Display
PID: 15355 (6n1/3Rpp1P/1Kp1BNp1/p3k3/3NP3/1n3R2/3B4/1bb5 w - - 0 1)

Sushkov, Yuri Akimovich

1st Prize, Themes-64, 1982

6n1/3Rpp1P/1Kp1BNp1/p3k3/3NP3/1n3R2/3B4/1bb5

#2

9 + 10

3485 Sachova skladba 1985
3752 FIDE Album (1980-1982) 1988
4849 The Sushkov Theme 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Sg4#
    • 1...c5
      • 2.Rd5#
    • 1...g5
      • 2.Rf5#
    • 1...fxe6
      • 2.Sxc6#
  • Tries
    • 1.Bf4+?
      • 1...Kxf6
        • 2.h8Q#
        • 2.h8B#
      • 1...Bxf4!
    • 1.Bf5?
      • threat
        • 2.Sg4#
      • 1...Kxf6
        • 2.h8Q#
        • 2.h8B#
      • 1...Sxf6
        • 2.Sxc6#
      • 1...gxf5
        • 2.Rxf5#
      • 1...exf6
        • 2.Sxc6#
      • 1...Sh6!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Sxc6#
      • 1...Kxd4
        • 2.Bc3#
      • 1...Sxd4
        • 2.Sg4#
      • 1...cxd5
        • 2.Rxd5#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(a);SBLOCK,XP(D)::S(G)
    • P(f);N_GUARD::R1(H)
    • P(g);N_GUARD::R1(B)
    • P(i);SBLOCK,XB(F)::S(C),XP(f)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(e);S_FLIGHT,XS(G)::P=Q
      • Refutation
        • B(b);XB(A)
    • Try
      • B(F);
      • Threat
        • S(G)
      • Vars
        • K(e);S_FLIGHT,XS(G)::P=Q
        • S(j);SBLOCK,XS(G)::S(C),XP(f)
        • P(g);OGATE,XB(F)::R1(B),XP(g)
        • P(h);SBLOCK,XS(G)::S(C),XP(f)
      • Refutation
        • S(j);
  • Actual
    • B(F);
    • Threat
      • S(C),XP(f)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(C)::B(A)
      • S(c);SBLOCK,XS(C)::S(G)
      • P(f);OGATE,XB(F)::R1(H),XP(f)
      • P(f);::S(C)
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