MESON Chess Problem Database

Problem Display
PID: 139764 (4N3/6p1/b1pP2p1/P1kqRp1R/P1P1p3/2Qpp3/Bn3NK1/b1B2n2 w - - 0 1)

Baturin, Aleksandr Adrianovich

1st HM., Vecherni Izvestiya, 1929

4N3/6p1/b1pP2p1/P1kqRp1R/P1P1p3/2Qpp3/Bn3NK1/b1B2n2

#2

12 + 13

113 Shakhmaty v SSSR 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2
      • 2.Bxe3#
    • 1...Sg3
      • 2.Bxe3#
    • 1...Sd1
      • 2.Ba3#
    • 1...Sxa4
      • 2.Ba3#
    • 1...Sxc4
      • 2.Ba3#
    • 1...f4
      • 2.Sxe4#
  • Tries
    • 1.cxd5+?
      • 1...Sc4
        • 2.Ba3#
      • 1...Bc4!
  • Keys
    • 1.Rxe4!
      • threat
        • 2.Qa3#
      • 1...Qxe4+
        • 2.Sxe4#
      • 1...Qxc4
        • 2.Re5#
      • 1...Sxc4
        • 2.Ba3#
      • 1...fxe4
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::B(A),XP(e)
    • S(c);OGATE::B(A)
    • S(c);OGATE,XP(F)::B(A)
    • S(c);OGATE,P_SPINS(c),XP(G)::B(A)
    • P(i);N_GUARD::S(C),XP(f)
  • Tries
    • Try
      • P(G);CHECK,XQ(h)
      • Vars
        • S(c);OGATE,P_SPINS(c)::B(A)
      • Refutation
        • B(j);P_SPINB(j)
  • Actual
    • R(I);N_PINQ(h),P_SPINR(I),XP(f)
    • Threat
      • QAB(E)
    • Vars
      • Q(h);CHECK,P_SPINP(i),XR(I)::S(C),XQ(h)
      • Q(h);N_PINR(I),P_SPINP(i),P_SPINQ(h),XP(G)::R(I)
      • S(c);OGATE,P_SPINS(c),XP(G)::B(A)
      • P(i);P_SPINQ(h),XR(I)::S(C),XP(i)
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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).