MESON Chess Problem Database

Problem Display
PID: 101337 (3Q3b/p1p5/2P5/rn2kP2/4P1K1/pp3P2/3P4/qb6 w - - 0 1)

Guidelli, Giorgio

Comm., Good Companions (April), 1917

3Q3b/p1p5/2P5/rn2kP2/4P1K1/pp3P2/3P4/qb6

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qe7#
    • 1...Bxe4
      • 2.f4#
    • 1...Bf6
      • 2.Qd5#
    • 1...Sc3
      • 2.d4#
    • 1...Sd6
      • 2.Qxh8#
  • Tries
    • 1.d3?
      • threat
        • 2.f4#
      • 1...Sd6
        • 2.Qxh8#
      • 1...Bxd3!
    • 1.d4+?
      • 1...Qxd4
        • 2.Qe7#
      • 1...Sxd4!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Qd5#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...Bxe4
        • 2.f4#
      • 1...Sd6
        • 2.Qxh8#
      • 1...Qd4
        • 2.Qe7#
      • 1...Sc3
        • 2.d4#
      • 1...Sd4
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(a);P_PINP(C),SBLOCK::QAR2(G)
    • B(b);SBLOCK,XP(C)::P(B)
    • B(j);SBLOCK::QAR1(G)
    • S(f);N_GUARD,S_CUTQ(a)::P(A)
    • S(f);SBLOCK::QAB(G),XB(j)
  • Tries
    • Try
      • P(A);
      • Threat
        • P(B)
      • Vars
        • S(f);SBLOCK::QAB(G),XB(j)
      • Refutation
        • B(b);XP(A)
    • Try
      • P(A);CHECK
      • Vars
        • Q(a);P_PINP(C),SBLOCK,XP(A)::QAR2(G)
      • Refutation
        • S(f);XP(A)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • QAR1(G)
    • Vars
      • B(j);CHECK,N_GUARD::QAB1(G),XB(j)
      • B(b);SBLOCK,XP(C)::P(B)
      • S(f);SBLOCK::QAB(G),XB(j)
      • Q(a);SBLOCK::QAR2(G)
      • S(f);N_GUARD,S_CUTQ(a)::P(A)
      • S(f);N_GUARD,SBLOCK::QAB(G),XP(i)
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).