MESON Chess Problem Database

Problem Display
PID: 243578 (B6Q/7q/1R1ppP1p/4kN1N/1KP1p1P1/p1P5/1b1P4/B7 w - - 0 1)

Dimitrov, Nikolai

Rochade Europa, 2000

B6Q/7q/1R1ppP1p/4kN1N/1KP1p1P1/p1P5/1b1P4/B7

#2

12 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.f7#
    • 1...Qb7
      • 2.f7#
    • 1...Qc7
      • 2.f7#
    • 1...Qd7
      • 2.f7#
    • 1...Qe7
      • 2.fxe7#
    • 1...Bxc3+
      • 2.Bxc3#
    • 1...e3
      • 2.d4#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sc6#
      • 1...Qb7
        • 2.f7#
      • 1...Qc7
        • 2.f7#
      • 1...Qd7
        • 2.f7#
      • 1...e3
        • 2.Sf3#
      • 1...d5
        • 2.Rxe6#
      • 1...Bxc3+!
    • 1.f7+?
      • 1...Qg7
        • 2.Qxg7#
      • 1...Qxh8!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sc6#
      • 1...Bxc3+
        • 2.Bxc3#
      • 1...Qxe7
        • 2.fxe7#
      • 1...e3
        • 2.d4#
      • 1...d5
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(h);N_GUARD::QAB(L)+P(J)
    • Q(h);N_GUARD,P_PINR(I)::QAB(L)+P(J)
    • Q(h);OGATE::QAB(L)+P(J),XQ(h)
    • B(a);CHECK,OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
    • P(c);N_GUARD::P(B)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • Q(h);N_GUARD,P_PINR(I)::QAB(L)+P(J)
        • Q(h);N_GUARD::QAB(L)+P(J)
        • P(c);N_GUARD::S(G)
        • P(e);OGATE::R1(I),XP(f)
      • Refutation
        • B(a);CHECK,XP(C)
    • Try
      • P(J);CHECK
      • Vars
        • Q(h);N_GUARD,P_SPINQ(h)::QAB(L),XQ(h)
      • Refutation
        • Q(h);XQ(L)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(a);CHECK,OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
      • Q(h);OGATE,XS(G)::QAB(L)+P(J),XQ(h)
      • P(c);N_GUARD::P(B)
      • P(e);OGATEB::QAB(L)
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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).