MESON Chess Problem Database

Problem Display
PID: 137090 (3r4/1P1p4/bK6/3N2R1/3k2N1/3P1Pn1/BP3b2/n2Q4 w - - 0 1)

Paslack, Rainer

StrateGems, 2010

3r4/1P1p4/bK6/3N2R1/3k2N1/3P1Pn1/BP3b2/n2Q4

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.dxc4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Rd5#
      • 1...Bxb7
        • 2.Sb5#
      • 1...Bc4
        • 2.dxc4#
      • 1...Sf5
        • 2.Se2#
      • 1...d5!
    • 1.Sc7?
      • threat
        • 2.Rd5#
      • 1...Bxb7
        • 2.Sb5#
      • 1...d5
        • 2.Se6#
      • 1...Bc4
        • 2.dxc4#
      • 1...Sf5!
    • 1.Se7?
      • threat
        • 2.Rd5#
      • 1...d5
        • 2.Sc6#
      • 1...Bc4
        • 2.dxc4#
      • 1...Sf5
        • 2.Sxf5#
      • 1...Bxb7!
    • 1.Qa4+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...Kxd3+!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Rd5#
      • 1...Bxb7
        • 2.Qa4#
      • 1...d5
        • 2.Se6#
      • 1...Bc4
        • 2.dxc4#
      • 1...Sf5
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(e);OGATE::QAR(A)+P(D),XB(e)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(H)
      • Vars
        • B(e);N_GUARD,XP(J)::S(G)
        • B(e);OGATE::QAR(A)+P(D),XB(e)
        • S(c);N_GUARD::S(G)
      • Refutation
        • P(f);
    • Try
      • S(G);
      • Threat
        • R1(H)
      • Vars
        • B(e);N_GUARD,XP(J)::S(G)
        • P(f);N_GUARD::S(G)
        • B(e);OGATE::QAR(A)+P(D),XB(e)
      • Refutation
        • S(c);
    • Try
      • S(G);
      • Threat
        • R1(H)
      • Vars
        • P(f);N_GUARD::S(G)
        • B(e);OGATE::QAR(A)+P(D),XB(e)
        • S(c);N_GUARD::S(G),XS(c)
      • Refutation
        • B(e);XP(J)
    • Try
      • Q(A);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAR1(A),XB(e)
      • Refutation
        • K(d);CHECK,P-FLIGHT,XP(D)
  • Actual
    • S(G);
    • Threat
      • R1(H)
    • Vars
      • B(e);N_GUARD,XP(J)::QAR(A)
      • P(f);N_GUARD::S(G)
      • B(e);OGATE::QAR(A)+P(D),XB(e)
      • S(c);N_GUARD::S(G)
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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).