MESON Chess Problem Database

Problem Display
PID: 87567 (q7/4Q2p/3npn2/4k3/1NP1P3/2P3P1/4R1N1/1b2K3 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Problemista, 1964

q7/4Q2p/3npn2/4k3/1NP1P3/2P3P1/4R1N1/1b2K3

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qa1
      • 2.Sc6#
    • 1...Qa2
      • 2.Sc6#
    • 1...Qa3
      • 2.Sc6#
    • 1...Qa5
      • 2.Sc6#
    • 1...Qa7
      • 2.Sc6#
    • 1...Qb8
      • 2.Sc6#
    • 1...Qd8
      • 2.Sc6#
    • 1...Qf8
      • 2.Sc6#
    • 1...Qg8
      • 2.Sc6#
    • 1...Qh8
      • 2.Sc6#
    • 1...Ba2
      • 2.Sd3#
    • 1...Bd3
      • 2.Sxd3#
    • 1...Sb7
      • 2.Sc6#
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sf3#
      • 1...Qxe4
        • 2.Sc6#
      • 1...Bxe4
        • 2.Sd3#
      • 1...Sdxe4
        • 2.Qc7#
      • 1...Sfxe4
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 14
  • Sets
    • Q(g);N_GUARD::S(F),XQ(g)
    • Q(g);N_GUARD::S(F)
    • B(a);N_GUARD::S(F)
    • B(a);N_GUARD::S(F),XB(a)
    • S(c);S_CUTQ(g)::S(F)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • Q(g);N_GUARD,P_PINR(B),P_SPINQ(g),XP(H)::S(F)
      • B(a);N_GUARD,P_SPINB(a),XP(H)::S(F)
      • S(c);OGATEB,P_SPINS(c),XP(H)::QAB(I)
      • S(e);OGATEB,P_SPINS(e),XP(H)::QAB(I)
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).