MESON Chess Problem Database

Problem Display
PID: 43745 (8/4B3/2B2NbK/1p3r1p/2kb3R/R2nQ3/1pN1n3/2q2r2 w - - 0 1)

Baev, Georgy S

Loshinski, Lev Ilich

De Problemist, 1930

8/4B3/2B2NbK/1p3r1p/2kb3R/R2nQ3/1pN1n3/2q2r2

#2

8 + 11

5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3+
      • 2.Sxe3#
    • 1...Qa1
      • 2.Qxd3#
    • 1...Qb1
      • 2.Qxd3#
    • 1...Qe1
      • 2.Qxd3#
    • 1...R1f4
      • 2.Qxd3#
    • 1...Rf2
      • 2.Bd5#
    • 1...Rf3
      • 2.Bd5#
    • 1...R5f4
      • 2.Bd5#
      • 2.Qe6#
    • 1...Rd5
      • 2.Bxd5#
    • 1...Sg1
      • 2.Rxd4#
    • 1...Sc3
      • 2.Rxd4#
    • 1...Sg3
      • 2.Rxd4#
    • 1...Sef4
      • 2.Qxd4#
    • 1...Sdf4
      • 2.Qb3#
    • 1...Se5
      • 2.Bd5#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sb6#
      • 1...Qxe3+
        • 2.Sxe3#
      • 1...R1f4
        • 2.Qxd3#
      • 1...R5f4
        • 2.Qe6#
      • 1...Sef4
        • 2.Qxd4#
      • 1...Sdf4
        • 2.Qb3#

Anticipated by 44070(1923), 44072(1927)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(a);CHECK,XQ(C)::S(A),XQ(a)
    • Q(a);N_PINQ(C)::QAB1(C),XS(e)
    • R(b);N_PINQ(C),N_SPINB(g)::QAB1(C),XS(e)
    • R(i);N_GUARD::B(E)
    • R(i);N_GUARD::B(E),XR(i)
    • S(d);N_GUARD::R1(D),XB(g)
    • S(d);N_PINQ(C),N_SPINB(g)::QAR1(C),XB(g)
    • S(e);N_PINQ(C),N_SPINB(g)::QAB1(C)
    • S(e);S_CUTR(i)::B(E)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • Q(a);CHECK,XQ(C)::S(A),XQ(a)
      • R(b);N_PINQ(C),N_SPINB(g)::QAB1(C),XS(e)
      • R(i);N_PINQ(C),N_SPINB(g)::QAB(C)
      • S(d);N_PINQ(C),N_SPINB(g)::QAR1(C),XB(g)
      • S(e);N_PINQ(C),N_SPINB(g)::QAB1(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).