MESON Chess Problem Database

Problem Display
PID: 24116 (K7/2p5/1k6/8/1NP5/2B5/4Q3/8 w - - 0 1)

Sweeney, Thomas B

L'Italia Scacchistica, 1970

K7/2p5/1k6/8/1NP5/2B5/4Q3/8

#2

5 + 2

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2+?
      • 1...Ka5
        • 2.Qa7#
      • 1...c5!
    • 1.Qe3+?
      • 1...Ka5
        • 2.Qa7#
      • 1...c5!
    • 1.Qe6+?
      • 1...Ka5
        • 2.Qa6#
      • 1...Kc5
        • 2.Sd3#
        • 2.Sa6#
        • 2.Qc6#
      • 1...c6!
    • 1.Qe7?
      • 1...c5
        • 2.Qd8#
        • 2.Qa7#
      • 1...c6
        • 2.Qa7#
      • 1...Ka5!
    • 1.Qe8?
      • threat
        • 2.Qb5#
      • 1...Ka5
        • 2.Qb5#
      • 1...Kc5
        • 2.Qc6#
      • 1...c5
        • 2.Qd8#
      • 1...c6!
    • 1.c5+?
      • 1...Ka5
        • 2.Qa6#
      • 1...Kxc5!
  • Keys
    • 1.Sa6!
      • 1...Kxa6
        • 2.c5#
      • 1...Kc6
        • 2.Qe6#
      • 1...c5
        • 2.Qe6#
      • 1...c6
        • 2.c5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(A);
      • Vars
        • P(b);OGATE::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • P(b);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • P(b);
    • Try
      • P(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XP(D)
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT,XS(C)::QAB(A)+P(D)
      • K(a);P-FLIGHT::QAR2(A)
      • P(b);N_GUARD::QAR(A)
      • P(b);SBLOCK::P(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).