MESON Chess Problem Database

Problem Display
PID: 233743 (K3k3/Rn2P3/4PpN1/1p1N2B1/8/6b1/2B1p3/1n2qr2 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Freie Presse, 1985

K3k3/Rn2P3/4PpN1/1p1N2B1/8/6b1/2B1p3/1n2qr2

#2

8 + 9

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Sxf6#
    • 1...Rh1
      • 2.Sxf6#
    • 1...Rf4
      • 2.Sc7#
    • 1...Bf2
      • 2.Sxf6#
      • 2.Sc7#
    • 1...Bf4
      • 2.Sxf6#
    • 1...Bh4
      • 2.Sc7#
    • 1...Bc7
      • 2.Sxc7#
    • 1...Sd6
      • 2.Sc7#
    • 1...b4
      • 2.Ba4#
    • 1...f5
      • 2.Sf6#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Sxf6#
        • 2.Sc7#
      • 1...Rxf4
        • 2.Sc7#
      • 1...Bxf4
        • 2.Sxf6#
      • 1...Qa5
        • 2.Sxf6#
      • 1...Bh4
        • 2.Sc7#
      • 1...f5
        • 2.Sf6#
        • 2.Sc7#
      • 1...Qc3!
  • Keys
    • 1.Sgf4!
      • threat
        • 2.Bg6#
      • 1...Sd6
        • 2.Sxf6#
      • 1...Sd8
        • 2.Sxf6#
      • 1...f5
        • 2.Sc7#

Anticipated by 238084(1953)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::S(B),XP(g)
    • R(c);S_CUTB(e)::S(B)
    • B(e);S_CUTR(c)::S(B),XP(g)
    • B(e);N_GUARD::S(B)
    • B(e);N_GUARD::S(B),XB(e)
    • S(h);S_CUTB(e)::S(B)
    • P(f);OGATEB::B(A)
    • P(g);S_CUTR(c)::S(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XB(C)::S(B)
        • B(e);XB(C)::S(B),XP(g)
        • Q(b);P_PINR(F)::S(B),XP(g)
        • B(e);::S(B)
      • Refutation
        • Q(b);
  • Actual
    • S(E);
    • Threat
      • B(A)
    • Vars
      • S(h);::S(B),XP(g)
      • P(g);::S(B)
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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).