MESON Chess Problem Database

Problem Display
PID: 275395 (8/1N6/4R3/1ppk2N1/1Rp4p/3n4/2PQ1B2/n2K4 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Variantim, 2023

8/1N6/4R3/1ppk2N1/1Rp4p/3n4/2PQ1B2/n2K4

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qxd3#
  • Tries
    • 1.Bg3?
      • threat
        • 2.Rd6#
      • 1...Kd4
        • 2.Rd6#
        • 2.Qxd3#
      • 1...hxg3!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rd6#
      • 1...Sb2+
        • 2.Bxb2#
      • 1...Sf2+
        • 2.Bxf2#
      • 1...Kxd4
        • 2.Qxd3#
      • 1...cxd4
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::QAR2(C),XS(b)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(G)
      • Refutation
        • P(d);XB(D)
  • Actual
    • B(D);N_PINS(b)
    • Threat
      • R1(G)
    • Vars
      • S(b);CHECK,OGATEB::QAR(C)+B(D),XS(b)
      • K(g);OGATEB,P-FLIGHT,P_SPINP(c),P_SPINS(b),XB(D)::QAR1(C),XS(b)
      • P(f);SBLOCK,XB(D)::QAB(C)
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).