MESON Chess Problem Database

Problem Display
PID: 147944 (1Kb4Q/R2pk2p/1np3p1/2P1NPPp/1N3n1B/8/3r3b/1r1R3q w - - 0 1)

Dobordzinidze, Aleksandr

Shakhmatny Listok, 1930

1Kb4Q/R2pk2p/1np3p1/2P1NPPp/1N3n1B/8/3r3b/1r1R3q

#2

10 + 13

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd1
      • 2.Sbxc6#
    • 1...Qe1
      • 2.Sbxc6#
    • 1...Qf1
      • 2.Sbxc6#
    • 1...Qg1
      • 2.Sbxc6#
    • 1...Rg2
      • 2.Sbxc6#
    • 1...Rd5
      • 2.Sbxc6#
    • 1...Rd6
      • 2.cxd6#
    • 1...Sg2
      • 2.Sxc6#
    • 1...Sfd5
      • 2.Sxc6#
    • 1...Se6
      • 2.f6#
  • Tries
    • 1.Qg7+?
      • 1...Kd8
        • 2.Qf8#
      • 1...Ke8!
  • Keys
    • 1.Qg8!
      • threat
        • 2.f6#
      • 1...gxf5
        • 2.g6#
      • 1...Rd6
        • 2.cxd6#
      • 1...Sfd5
        • 2.Sxc6#
      • 1...Sbd5
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(b);N_GUARD,XR(A)::S(B),XP(h)
    • Q(b);N_GUARD::S(B),XP(h)
    • R(c);S_CUTQ(b)::S(B),XP(h)
    • R(c);OGATE::P(D),XR(c)
    • S(e);P_PINS(E),S_CUTQ(b)::S(B),XP(h)
    • S(e);P_PINS(E),SBLOCK::P(F)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • K(k);N_SPINP(j),S_FLIGHT::QAR2(J)
      • Refutation
        • K(k);N_SPINP(j),P-FLIGHT
  • Actual
    • Q(J);
    • Threat
      • P(F)
    • Vars
      • P(i);OGATE,XP(F)::B(C)+P(G)
      • R(c);OGATE::P(D),XR(c)
      • S(e);P_PINS(E),S_CUTQ(b)::S(B),XP(h)
      • S(g);P_PINS(B),S_CUTQ(b)::S(E),XP(h)
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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).