MESON Chess Problem Database

Problem Display
PID: 65215 (2b5/B7/nrR1p1K1/1N1Nk3/2B2pp1/8/3n4/7Q w - - 0 1)

Bourd, Evgeny

1st HM., StrateGems, 2006

2b5/B7/nrR1p1K1/1N1Nk3/2B2pp1/8/3n4/7Q

#2

7 + 8

145 StrateGems 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Bd4#
    • 1...Rb7
      • 2.Bd4#
    • 1...Rb8
      • 2.Bd4#
    • 1...Sb1
      • 2.Qe1#
    • 1...Sb3
      • 2.Qe1#
    • 1...exd5
      • 2.Qxd5#
  • Tries
    • 1.Sdc3?
      • threat
        • 2.Qh5#
        • 2.Qh8#
      • 1...Rb7
        • 2.Bd4#
        • 2.Qh5#
      • 1...Sf3
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...f3!
    • 1.Bd3?
      • threat
        • 2.Qh5#
      • 1...exd5
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf3!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qh8#
      • 1...Kd4
        • 2.Qa1#
      • 1...Rxc6
        • 2.Sf7#
      • 1...Sxc4
        • 2.Qe4#
      • 1...exd5
        • 2.Qxd5#
      • 1...Rb7
        • 2.Qh5#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(f);OGATE,XR(E)::B(G)
    • R(f);OGATE::B(G)
    • S(a);N_GUARD::QAR(A)
    • P(g);OGATE,P_PINR(E),XS(D)::QAR1(A),XP(g)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • P(g);P_PINR(E),SBLOCK,XS(D)::QAB(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • S(a);
  • Actual
    • S(C);
    • Threat
      • QAB(A)
    • Vars
      • K(d);P_SPINR(f),S_FLIGHT::QAB(A)
      • R(f);XR(E)::S(C)
      • S(a);N_GUARD,XB(B)::QAR1(A)
      • P(g);OGATE,XS(D)::QAR1(A),XP(g)
      • R(f);::QAR(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
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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).