MESON Chess Problem Database

Problem Display
PID: 226326 (nn1N4/BK6/3p4/k1p5/pp6/1R6/5p2/Q4B2 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Sachova skladba, 2004

nn1N4/BK6/3p4/k1p5/pp6/1R6/5p2/Q4B2

#2

6 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Bxb6#
    • 1...Sc7
      • 2.Bb6#
    • 1...Sa6
      • 2.Sc6#
    • 1...Sc6
      • 2.Sxc6#
    • 1...Sd7
      • 2.Sc6#
  • Tries
    • 1.Ra3?
      • threat
        • 2.Rxa4#
      • 1...bxa3
        • 2.Qc3#
      • 1...Sb6
        • 2.Bxb6#
      • 1...c4!
    • 1.Qa3?
      • 1...bxa3
        • 2.Rb5#
      • 1...c4
        • 2.Qxb4#
      • 1...Sb6
        • 2.Bxb6#
      • 1...Sc7
        • 2.Bb6#
      • 1...Sa6
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Sd7
        • 2.Sc6#
      • 1...d5!
  • Keys
    • 1.Qc3!
      • 1...axb3
        • 2.Qa1#
      • 1...bxc3
        • 2.Rb5#
      • 1...a3
        • 2.Rxa3#
      • 1...c4
        • 2.Qxb4#
      • 1...Sb6
        • 2.Bxb6#
      • 1...Sc7
        • 2.Bb6#
      • 1...Sa6
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Sd7
        • 2.Sc6#
      • 1...d5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::B(D),XS(g)
    • S(g);N_GUARD::B(D)
    • S(h);N_GUARD::S(F)
    • S(h);N_GUARD::S(F),XS(h)
  • Tries
    • Try
      • R(C);
      • Threat
        • R1(C),XP(b)
      • Vars
        • P(c);N_SPINP(b),OGATEB,XR(C)::QAB(A)
        • S(g);N_GUARD::B(D),XS(g)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Vars
        • P(c);N_SPINP(b),OGATE,XQ(A)::R1(C)
        • P(e);N_GUARD::QAB1(A),XP(c)
        • S(g);N_GUARD::B(D),XS(g)
        • S(g);N_GUARD::B(D)
        • S(h);N_GUARD::S(F)
        • S(h);N_GUARD::S(F),XS(h)
      • Refutation
        • P(f);
  • Actual
    • Q(A);N_PINP(b),P_PINP(c)
    • Vars
      • P(b);OGATEB,XR(C)::QAR(A)
      • P(c);N_SPINP(c),OGATE,XQ(A)::R1(C)
      • P(b);OGATEB::R(C),XP(b)
      • P(e);N_GUARD::QAB1(A),XP(c)
      • S(g);N_GUARD::B(D),XS(g)
      • S(g);N_GUARD::B(D)
      • S(h);N_GUARD::S(F)
      • S(h);N_GUARD::S(F),XS(h)
      • P(f);N_GUARD::QAR2(A),XP(e)
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