MESON Chess Problem Database

Problem Display
PID: 39609 (8/8/1BBP1P2/3P3N/1Q1PkPK1/2r3P1/2P3P1/3N4 w - - 0 1)

Prcic, Mike

13th Place, Match: Macedonia - USA, 2001

8/8/1BBP1P2/3P3N/1Q1PkPK1/2r3P1/2P3P1/3N4

#2

14 + 2

145 StrateGems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sf2#
    • 1...Rf3
      • 2.gxf3#
    • 1...Rxg3+
      • 2.Sxg3#
    • 1...Rc4
      • 2.Qe1#
    • 1...Rc5
      • 2.dxc5#
  • Tries
    • 1.Qb3?
      • 1...Rxg3+
        • 2.Sxg3#
      • 1...Rxc2
        • 2.Qxc2#
        • 2.Qe3#
        • 2.Qf3#
      • 1...Rxc6
        • 2.Sf2#
        • 2.Qf3#
      • 1...Rc5
        • 2.Qd3#
        • 2.Qe3#
      • 1...Rd3
        • 2.Qxd3#
        • 2.cxd3#
      • 1...Re3
        • 2.Sf2#
        • 2.Qxe3#
      • 1...Rf3
        • 2.Qxf3#
        • 2.gxf3#
      • 1...Rc4
        • 2.Sf2#
        • 2.Qd3#
        • 2.Qe3#
        • 2.Qf3#
      • 1...Rxb3!
    • 1.f7?
      • threat
        • 2.Sf6#
      • 1...Rxg3+
        • 2.Sxg3#
      • 1...Rxc2!
  • Keys
    • 1.Qb1!
      • 1...Rxg3+
        • 2.Sxg3#
      • 1...Rxc2
        • 2.Qxc2#
      • 1...Rxc6
        • 2.c4#
      • 1...Rc5
        • 2.c3#
      • 1...Ra3
        • 2.c3#
      • 1...Rb3
        • 2.cxb3#
      • 1...Rd3
        • 2.cxd3#
      • 1...Re3
        • 2.Sf2#
      • 1...Rf3
        • 2.gxf3#
      • 1...Rc4
        • 2.c3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::S(A)
    • R(a);OGATE::P(C),XR(a)
    • R(a);CHECK,XP(D)::S(J),XR(a)
    • R(a);OGATE::QAR(E)
    • R(a);OGATE::QAR(E)+P(F),XR(a)
  • Tries
    • Try
      • Q(E);
      • Vars
        • R(a);CHECK,XP(D)::S(J),XR(a)
      • Refutation
        • R(a);XQ(E)
    • Try
      • P(N);
      • Threat
        • S(J)
      • Vars
        • R(a);CHECK,XP(D)::S(J),XR(a)
      • Refutation
        • R(a);XP(B)
  • Actual
    • Q(E);
    • Vars
      • R(a);CHECK,XP(D)::S(J),XR(a)
      • R(a);OGATE,P_SPINR(a),XP(B)::QAB(E),XR(a)
      • R(a);OGATE,XB(L)::QAB(E)+P(B)
      • R(a);OGATE::QAB(E)+P(B)
      • R(a);OGATE::QAB(E)+P(B),XR(a)
      • R(a);OGATE::P(B),XR(a)
      • R(a);SBLOCK::S(A)
      • R(a);OGATE::P(C),XR(a)
HTML5 logo

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).