MESON Chess Problem Database

Problem Display
PID: 169131 (7Q/2p2p2/4B3/1Np3pN/1RppkppR/4n3/2P1K1P1/8 w - - 0 1)

Permyakov, Evgeni Nikolaevich

5th Place, SuperProblem 003. TT, 2012

7Q/2p2p2/4B3/1Np3pN/1RppkppR/4n3/2P1K1P1/8

#2

9 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Sxc3#
    • 1...d3+
      • 2.cxd3#
    • 1...f3+
      • 2.gxf3#
    • 1...g3
      • 2.Sxg3#
    • 1...cxb4
      • 2.Qxd4#
    • 1...c6
      • 2.Sd6#
  • Keys
    • 1.Qf6!
      • 1...d3+
        • 2.cxd3#
      • 1...f3+
        • 2.gxf3#
      • 1...Sxc2
        • 2.Qf5#
      • 1...Sxg2
        • 2.Qf5#
      • 1...cxb4
        • 2.Qxd4#
      • 1...gxh4
        • 2.Qxf4#
      • 1...fxe6
        • 2.Qxe6#
      • 1...Sd1
        • 2.Qf5#
      • 1...Sf1
        • 2.Qf5#
      • 1...Sd5
        • 2.Bf5#
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...c3
        • 2.Sxc3#
      • 1...g3
        • 2.Sxg3#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(b);P_SPINP(c)::S(F),XP(b)
    • P(c);CHECK,OGATE,P_SPINP(b)::P(A),XP(c)
    • P(e);CHECK,OGATE,P_SPINP(f)::P(C),XP(e)
    • P(f);P_SPINP(e)::S(G),XP(f)
    • P(g);N_GUARD,XR(D)::QAR1(I),XP(c)
    • P(i);N_GUARD::S(F)
  • Actual
    • Q(I);
    • Vars
      • P(c);CHECK,OGATE,P_SPINP(b)::P(A),XP(c)
      • P(e);CHECK,OGATE,P_SPINP(f)::P(C),XP(e)
      • S(a);N_GUARD,XP(A)::QAB1(I)
      • S(a);N_GUARD,XP(C)::QAB1(I)
      • P(g);N_GUARD,XR(D)::QAR1(I),XP(c)
      • P(h);N_GUARD,XR(E)::QAR1(I),XP(e)
      • P(j);OGATE,XB(H)::QAR2(I),XP(j)
      • S(a);N_GUARD::QAB1(I)
      • S(a);N_GUARD::QAB1(I),XS(a)
      • P(b);P_SPINP(c)::S(F),XP(b)
      • P(f);P_SPINP(e)::S(G),XP(f)
      • P(i);N_GUARD::S(F)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).