MESON Chess Problem Database

Problem Display
PID: 259254 (8/1QP5/8/8/4K1p1/4P2p/5BBk/2R5 w - - 0 1)

Camponovo, Elios

Schweizerische Schachzeitung, 1944

8/1QP5/8/8/4K1p1/4P2p/5BBk/2R5

#2

7 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kf4?
      • threat
        • 2.Bg1#
        • 2.Bg3#
        • 2.Rh1#
      • 1...g3
        • 2.Bg1#
        • 2.Bxg3#
        • 2.Rh1#
      • 1...hxg2!
    • 1.Bg1+?
      • 1...Kxg2
        • 2.Kf4#
      • 1...Kg3!
    • 1.Bg3+?
      • 1...Kxg2
        • 2.Kf4#
      • 1...Kxg3!
    • 1.Qc8?
      • 1...hxg2
        • 2.Qh8#
      • 1...g3
        • 2.Qxh3#
      • 1...Kxg2!
    • 1.c8Q?
      • 1...hxg2
        • 2.Qh7#
        • 2.Qh8#
      • 1...g3
        • 2.Qxh3#
      • 1...Kxg2!
  • Keys
    • 1.Qb2!
      • 1...Kxg2
        • 2.Bh4#
      • 1...hxg2
        • 2.Qh8#
      • 1...g3
        • 2.Bg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • DUALS(3)
      • Refutation
        • P(b);XB(C)
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(C)::QAB(F)+K(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(C)::QAB(F)+K(E)
      • Refutation
        • K(a);S_FLIGHT,XB(B)
    • Try
      • Q(F);
      • Vars
        • P(b);OGATEB,SBLOCK,XB(C)::QAR(F)
        • P(c);OGATE::QAR1(F),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • P(G);
      • Vars
        • P(c);OGATE::QAR1(G),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
  • Actual
    • Q(F);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XB(C)::QAR(F)+B(B)
      • P(b);OGATEB,SBLOCK,XB(C)::QAR(F)
      • P(c);SBLOCK::B(B)
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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).