MESON Chess Problem Database

Problem Display
PID: 223046 (3R1K2/3N2P1/1Pp1P3/1rPk1p2/1p2b3/1P1p1N2/Q2PB2n/8 w - - 0 1)

Bossy, Vasile Basile

La Strategie, 1886

3R1K2/3N2P1/1Pp1P3/1rPk1p2/1p2b3/1P1p1N2/Q2PB2n/8

#2

12 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.g8Q#
      • 2.g8B#
  • Tries
    • 1.Sde5+?
      • 1...Kxe6
        • 2.Rd6#
      • 1...Kxc5!
    • 1.Sf6+?
      • 1...Kxe6
        • 2.Rd6#
      • 1...Kxc5!
    • 1.Sb8+?
      • 1...Kxe6
        • 2.Rd6#
      • 1...Kxc5!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qc4#
      • 1...Kxe6
        • 2.g8Q#
        • 2.g8B#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...dxc2
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);S_FLIGHT,XP(H)::P=Q
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(f);S_FLIGHT,XP(H)::R1(K)
      • Refutation
        • K(f);P-FLIGHT,XP(F)
    • Try
      • S(I);CHECK
      • Vars
        • K(f);S_FLIGHT,XP(H)::R1(K)
      • Refutation
        • K(f);P-FLIGHT,XP(F)
    • Try
      • S(I);CHECK
      • Vars
        • K(f);S_FLIGHT,XP(H)::R1(K)
      • Refutation
        • K(f);P-FLIGHT,XP(F)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(f);S_FLIGHT,XP(H)::P=Q
      • R(e);XP(F)::R(K)+S(I),XR(e)
      • P(b);OGATE,XQ(A)::B(C)
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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).