MESON Chess Problem Database

Problem Display
PID: 264206 (1B6/8/8/1P1k1P2/pP1pp2p/rqQ4K/B6n/b1R5 w - - 0 1)

Foschini, Ettore

Swiat Szachowy, 1929

1B6/8/8/1P1k1P2/pP1pp2p/rqQ4K/B6n/b1R5

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Bxc4#
    • 1...Sf3
      • 2.Qc5#
      • 2.Qc6#
    • 1...d3
      • 2.Qc5#
    • 1...e3
      • 2.Qc6#
  • Tries
    • 1.Bxb3+?
      • 1...axb3
        • 2.Qc4#
        • 2.Qc5#
        • 2.Qc6#
      • 1...Rxb3!
    • 1.Rd1?
      • threat
        • 2.Rxd4#
      • 1...Sf3
        • 2.Qc5#
        • 2.Qc6#
      • 1...d3
        • 2.Qc5#
      • 1...Bxc3!
    • 1.Qxb3+?
      • 1...axb3
        • 2.Rc5#
      • 1...Rxb3+!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Rc5#
      • 1...Bc3
        • 2.Qg8#
      • 1...d3
        • 2.Qd6#
      • 1...e3
        • 2.Qe5#
      • 1...Qc4
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(d);OGATE::B(B),XQ(d)
    • P(f);N_PINQ(C)::QAR1(C)
    • P(g);N_PINQ(C)::QAB1(C)
  • Tries
    • Try
      • B(B);CHECK,N_SPINQ(C),XQ(d)
      • Refutation
        • R(c);P_PINQ(C),XB(B)
    • Try
      • R(A);P_PINP(f)
      • Threat
        • R1(A),XP(f)
      • Vars
        • P(f);N_PINQ(C)::QAR1(C)
      • Refutation
        • B(a);XQ(C)
    • Try
      • Q(C);CHECK,XQ(d)
      • Vars
        • P(e);P_SPINP(e),XQ(C)::R1(A)
      • Refutation
        • R(c);CHECK,P_SPINR(c),XQ(C)
  • Actual
    • Q(C);
    • Threat
      • R1(A)
    • Vars
      • B(a);N_PINQ(C)::QAB(C)
      • P(f);N_PINQ(C)::QAR1(C)
      • P(g);N_PINQ(C)::QAR1(C)
      • Q(d);OGATE::B(B),XQ(d)
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).