MESON Chess Problem Database

Problem Display
PID: 15857 (q5B1/p6p/3p2r1/n1NbNQ2/p2kP1p1/2R3K1/1P6/8 w - - 0 1)

Sushkov, Yuri Akimovich

Probleemblad, 1988

q5B1/p6p/3p2r1/n1NbNQ2/p2kP1p1/2R3K1/1P6/8

#2

8 + 10

4849 The Sushkov Theme 1999

SOLUTION

  • SOUND
  • Sets
    • 1...dxc5
      • 2.Rd3#
    • 1...dxe5
      • 2.Qf2#
  • Tries
    • 1.Scd7?
      • threat
        • 2.Rd3#
      • 1...Bxe4
        • 2.Qf2#
      • 1...dxe5
        • 2.Qxe5#
      • 1...Bc4!
    • 1.Sc6+?
      • 1...Bxc6
        • 2.Rd3#
      • 1...Sxc6
        • 2.Qxd5#
      • 1...Qxc6!
    • 1.Sxg6?
      • threat
        • 2.Qf2#
        • 2.Qf6#
      • 1...dxc5
        • 2.Qe5#
      • 1...hxg6
        • 2.Qf6#
      • 1...Qd8
        • 2.Qf2#
        • 2.Qxd5#
      • 1...Qe8
        • 2.Qf2#
        • 2.Qxd5#
      • 1...Qf8
        • 2.Qxd5#
      • 1...Bc4
        • 2.Qf2#
      • 1...Sc6
        • 2.Qf2#
        • 2.Qxd5#
      • 1...Sc4!
  • Keys
    • 1.Sed7!
      • threat
        • 2.Qf2#
      • 1...dxc5
        • 2.Qe5#
      • 1...Qf8
        • 2.Qxd5#
      • 1...Rf6
        • 2.Qxf6#
      • 1...Sc4
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(f);SBLOCK,XS(E)::R1(B)
    • P(f);SBLOCK,XS(F)::QAB(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(B)
      • Vars
        • B(e);SBLOCK,XP(D)::QAB(G)
        • P(f);OGATE,XS(F)::QAB1(G),XP(f)
      • Refutation
        • B(e);
    • Try
      • S(F);CHECK
      • Vars
        • B(e);XS(F)::R1(B)
        • S(d);XS(F)::QAR1(G),XB(e)
      • Refutation
        • Q(j);XS(F)
    • Try
      • S(F);XR(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);N_GUARD,XS(E)::QAB1(G)
        • P(i);XS(F)::QAB(G)
        • Q(j);N_GUARD::QAR1(G),XB(e)
        • B(e);::QAB(G)
      • Refutation
        • S(d);
  • Actual
    • S(F);
    • Threat
      • QAB(G)
    • Vars
      • P(f);N_GUARD,XS(E)::QAB1(G)
      • Q(j);N_GUARD::QAR1(G),XB(e)
      • R(g);N_GUARD::QAB(G),XR(g)
      • S(d);SBLOCK::R1(B)
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