MESON Chess Problem Database

Problem Display
PID: 62512 (3r4/2Q1p3/pp4n1/1p1P4/1P1k4/2NBRPK1/2pb2N1/4n3 w - - 0 1)

Sushkov, Yuri Akimovich

1st Prize, Shakhmaty v SSSR, 1981

3r4/2Q1p3/pp4n1/1p1P4/1P1k4/2NBRPK1/2pb2N1/4n3

#2

9 + 10

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Se2#
    • 1...Sxd3
      • 2.Re4#
    • 1...Sf4
      • 2.Qe5#
    • 1...Sh4
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sf8
      • 2.Qe5#
    • 1...Sh8
      • 2.Qe5#
  • Tries
    • 1.Sxb5+?
      • 1...Kxd5
        • 2.Bc4#
        • 2.Qc4#
        • 2.Qb7#
      • 1...axb5!
    • 1.Bc4?
      • threat
        • 2.Se2#
      • 1...Bxc3
        • 2.Re4#
      • 1...Sxg2
        • 2.Rd3#
      • 1...bxc4
        • 2.Qxb6#
      • 1...Sf4
        • 2.Qxf4#
      • 1...c1S!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Re4#
      • 1...Kxe3
        • 2.Qxb6#
      • 1...Bxe3
        • 2.Sce2#
      • 1...Sxf4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(j);SBLOCK,XP(H)::S(B)
    • S(a);SBLOCK,XB(C)::R1(D)
    • S(h);N_GUARD::QAB1(I)
    • S(h);N_GUARD::QAB1(I),XS(h)
  • Tries
    • Try
      • S(B);CHECK,XP(e)
      • Refutation
        • P(f);XS(B)
    • Try
      • B(C);
      • Threat
        • S(B)
      • Vars
        • B(c);SBLOCK,XS(B)::R1(D)
        • S(a);N_GUARD,XS(A)::R1(D)
        • P(e);SBLOCK,XB(C)::QAB(I),XP(g)
        • S(h);N_GUARD::QAR2(I),XS(h)
      • Refutation
        • P(b);
  • Actual
    • S(A);
    • Threat
      • R1(D)
    • Vars
      • K(d);S_FLIGHT,XR(D)::QAB(I),XP(g)
      • B(c);SBLOCK,XR(D)::S(B)
      • S(h);N_GUARD,XS(A)::QAB1(I)
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