MESON Chess Problem Database

Problem Display
PID: 173082 (5BQ1/2Rp1N2/Brb1P2K/1NP2p2/Ppkn1P2/1pb5/8/3R4 w - - 0 1)

Barulin, Mikhail Mikhailovich

Match: Leningrad - Moscow, 1933

5BQ1/2Rp1N2/Brb1P2K/1NP2p2/Ppkn1P2/1pb5/8/3R4

#2

12 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Rxd4#
    • 1...Bd5
      • 2.Sa3#
      • 2.Sbd6#
      • 2.Se5#
    • 1...Sc2
      • 2.Sa3#
    • 1...Se2
      • 2.Sa3#
    • 1...Sf3
      • 2.Sa3#
    • 1...Sxe6
      • 2.Sa3#
    • 1...d5
      • 2.Sa3#
      • 2.Se5#
  • Keys
    • 1.exd7!
      • threat
        • 2.Se5#
      • 1...Bh1+
        • 2.Sfd6#
      • 1...Bg2+
        • 2.Sfd6#
      • 1...Bf3+
        • 2.Sfd6#
      • 1...Be4+
        • 2.Sfd6#
      • 1...Bxb5+
        • 2.Sd6#
      • 1...Bd5+
        • 2.Sbd6#
      • 1...Bb7+
        • 2.Sfd6#
      • 1...Bxd7+
        • 2.Sfd6#
      • 1...Ba8+
        • 2.Sfd6#
      • 1...Kd5
        • 2.Sg5#
      • 1...Se6
        • 2.Sa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD::R1(A),XS(e)
    • S(e);::B(F)+S(D),DCHECK
    • S(e);XP(G)::B(F)+S(D),DCHECK
  • Actual
    • P(G);XP(i)
    • Threat
      • QAB(L)+S(J),DCHECK
    • Vars
      • B(h);CHECK::QAB(L)+S(J),DCHECK
      • B(h);CHECK,P_SPINB(h),XS(D)::QAB(L)+S(J),DCHECK
      • B(h);CHECK,SBLOCK::B(F)+S(D),DCHECK
      • B(h);CHECK,XP(G)::QAB(L)+S(J),DCHECK
      • K(d);P_SPINS(e),S_FLIGHT::QAB(L)+S(J)
      • S(e);::B(F)+S(D),DCHECK
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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).