MESON Chess Problem Database

Problem Display
PID: 56257 (3NRB2/3P1p2/1P2prp1/P2k2P1/8/1K1P1p2/p4P2/Q7 w - - 0 1)

Groeneveld, Cornelis

StrateGems, 2004

3NRB2/3P1p2/1P2prp1/P2k2P1/8/1K1P1p2/p4P2/Q7

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rxe5#
      • 2.Qxe5#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qd4#
      • 1...Kxc5
        • 2.Qe5#
      • 1...e5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Rf4!
    • 1.Bd6?
      • threat
        • 2.Qe5#
      • 1...Kxd6
        • 2.Qd4#
      • 1...e5
        • 2.Qxe5#
      • 1...Rf5!
    • 1.gxf6?
      • 1...e5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...g5!
  • Keys
    • 1.Bg7!
      • 1...Kc5
        • 2.Qe5#
      • 1...Kd6
        • 2.Qd4#
      • 1...Rf4
        • 2.Qe5#
      • 1...Rf5
        • 2.Qd4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(K);
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT,XB(K)::QAR2(A)
      • Refutation
        • R(e);
    • Try
      • B(K);
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT,XB(K)::QAR2(A)
        • P(d);::QAR1(A),XP(d)
      • Refutation
        • R(e);
    • Try
      • P(F);XR(e)
      • Refutation
        • P(f);
  • Actual
    • B(K);
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • R(e);::QAR1(A)
      • P(d);::QAR1(A),XP(d)
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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).