MESON Chess Problem Database

Problem Display
PID: 110278 (8/8/6K1/1nQ5/Rppnkp2/1P6/N2P3B/4N3 w - - 0 1)

Lider, Valentin Viktorovich

Sachove umeni (Ceskoslovensky sach), 1976

8/8/6K1/1nQ5/Rppnkp2/1P6/N2P3B/4N3

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Qe5#
  • Tries
    • 1.Bg1?
      • 1...Sxb3
        • 2.Qf5#
      • 1...cxb3
        • 2.d3#
      • 1...Sc2
        • 2.Qf5#
      • 1...Se2
        • 2.Qf5#
      • 1...Sf3
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sc6
        • 2.Qf5#
      • 1...Se6
        • 2.Qf5#
      • 1...Sa3
        • 2.Qxd4#
      • 1...Sc3
        • 2.Qxd4#
      • 1...Sd6
        • 2.Qxd4#
      • 1...Sa7
        • 2.Qxd4#
      • 1...Sc7
        • 2.Qxd4#
      • 1...c3
        • 2.d3#
      • 1...f3!
    • 1.Qe7+?
      • 1...Kd5
        • 2.Sxb4#
      • 1...Se6!
  • Keys
    • 1.Rxb4!
      • 1...Sxb3
        • 2.d3#
      • 1...cxb3
        • 2.Qf5#
      • 1...Sf3
        • 2.d3#
      • 1...Sc2
        • 2.d3#
      • 1...Se2
        • 2.d3#
      • 1...Sf5
        • 2.d3#
      • 1...Sc6
        • 2.d3#
      • 1...Se6
        • 2.d3#
      • 1...Sa3
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sd6
        • 2.Sc3#
      • 1...Sa7
        • 2.Sc3#
      • 1...Sc7
        • 2.Sc3#
      • 1...c3
        • 2.Qf5#
      • 1...f3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • P(e);::QAR1(G)
  • Tries
    • Try
      • B(D);
      • Vars
        • S(c);N_GUARD,XP(E)::QAB1(G)
        • P(b);N_GUARD,XP(E)::P(C)
        • S(c);N_GUARD::QAB1(G)
        • S(c);N_GUARD::QAB1(G),XS(c)
        • S(f);N_GUARD::QAR1(G),XS(c)
        • P(b);N_GUARD::P(C)
      • Refutation
        • P(e);
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);S_FLIGHT::S(B),XP(a)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • R(F);XP(a)
    • Vars
      • S(c);P_SPINP(b),XP(E)::P(C)
      • P(b);P_SPINS(c),XP(E)::QAB1(G)
      • S(c);P_SPINP(b)::P(C)
      • S(f);N_GUARD::S(B)
      • S(f);N_GUARD::S(B),XS(f)
      • P(b);P_SPINS(c)::QAB1(G)
      • P(e);::QAR1(G)
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