MESON Chess Problem Database

Problem Display
PID: 6967 (5b2/3pn3/5k1B/1bNP1P1Q/7P/K1N2n1r/4R3/1B3R2 w - - 0 1)

Barulin, Mikhail Mikhailovich

1st Prize, Barcelona Chess Club, 1935

5b2/3pn3/5k1B/1bNP1P1Q/7P/K1N2n1r/4R3/1B3R2

#2

11 + 7

16265 The Two-move Chess Problem in the Soviet Union 1923-1943 1943
14752 Soviet Chess Compositions (1945-1947) 1949
3098 FIDE Album (1914-1944) (I) 1971
14868 Pirnie Collection 2013
133 The Problemist Supplement 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Sxd7#
    • 1...Bd3
      • 2.Sxd7#
    • 1...Bc4
      • 2.Sxd7#
    • 1...Ba6
      • 2.Sxd7#
    • 1...Se5
      • 2.Se4#
    • 1...Sg5
      • 2.hxg5#
    • 1...Sxd5
      • 2.Sxd5#
      • 2.Qg6#
    • 1...Sxf5
      • 2.Qxf5#
    • 1...Sc6
      • 2.Qg6#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sc8
      • 2.Qg6#
    • 1...Sg8
      • 2.Qg6#
    • 1...d6
      • 2.Re6#
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxf8#
      • 1...Bxe2
        • 2.Sxd7#
      • 1...Bxh6
        • 2.Qxe7#
      • 1...Sxf5
        • 2.Se4#
      • 1...Bg7
        • 2.Qxe7#
      • 1...Se5
        • 2.Se4#
      • 1...Sg5
        • 2.hxg5#
      • 1...Sg6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • B(c);N_GUARD,XR(C)::S(G),XP(e)
    • B(c);N_GUARD::S(G),XP(e)
    • S(a);P_PINS(E),SBLOCK::S(G)
    • S(a);OGATE,P_PINS(E)::P(F),XS(a)
    • S(f);OGATE,P_PINS(G),XP(I)::QAR1(J),XS(f)
    • S(f);N_GUARD,P_PINS(G)::QAR1(J)
    • S(f);N_GUARD,P_PINS(G)::QAR1(J),XS(f)
    • P(e);N_GUARD::R1(C)
  • Actual
    • Q(J);
    • Threat
      • QAR2(J),XB(g)
    • Vars
      • B(c);N_GUARD,XR(C)::S(G),XP(e)
      • B(g);N_GUARD,XB(K)::QAB1(J),XS(f)
      • S(f);P_PINS(G),SBLOCK,XP(I)::S(E)
      • B(g);N_GUARD::QAB1(J),XS(f)
      • S(a);P_PINS(E),SBLOCK::S(G)
      • S(a);OGATE,P_PINS(E)::P(F),XS(a)
      • S(f);N_GUARD,P_PINS(G)::QAR1(J),XS(f)
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).