MESON Chess Problem Database

Problem Display
PID: 70184 (4Brrq/8/4P3/4Q1pn/4Ppk1/2B2N2/6P1/K6N w - - 0 1)

Baev, Georgy S

Loshinski, Lev Ilich

HM., Sports Referee, 1930

4Brrq/8/4P3/4Q1pn/4Ppk1/2B2N2/6P1/K6N

#2

9 + 7

5314 Grossmeister Shakhmatnoi Kompozitsii 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qxf5#
    • 1...Rxe8
      • 2.Qf5#
    • 1...Sg3
      • 2.Sf2#
    • 1...Sf6
      • 2.Qf5#
    • 1...Sg7
      • 2.Qxg5#
  • Keys
    • 1.Be1!
      • threat
        • 2.Sh2#
      • 1...Qxe5+
        • 2.Sxe5#
      • 1...Sg3
        • 2.Sf2#
      • 1...Sf6
        • 2.Qf5#
      • 1...Sg7
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(e);N_GUARD::QAB1(G),XR(e)
    • R(e);N_GUARD,XB(I)::QAB1(G)
    • S(d);SBLOCK::S(B)
    • S(d);S_CUTR(e)::QAB1(G)
    • S(d);S_CUTR(f)::QAR1(G),XP(c)
  • Actual
    • B(D);P_SPINQ(G)
    • Threat
      • S(E)
    • Vars
      • Q(g);CHECK,XQ(G)::S(E),XQ(g)
      • S(d);SBLOCK::S(B)
      • S(d);N_PINQ(G)::QAB1(G)
      • S(d);N_PINQ(G)::QAR1(G),XP(c)
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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).