MESON Chess Problem Database

Problem Display
PID: 163831 (2N5/KR1b3q/p1k1n3/3r4/1Bn2p2/1N6/6RQ/7B w - - 0 1)

Piatesi, Antonio

Novi Temi, 1974

2N5/KR1b3q/p1k1n3/3r4/1Bn2p2/1N6/6RQ/7B

#2

8 + 8

3713 Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Se7#
    • 1...Qc2
      • 2.Se7#
    • 1...Qd3
      • 2.Se7#
    • 1...Qe4
      • 2.Se7#
    • 1...Qf5
      • 2.Se7#
    • 1...Qg6
      • 2.Se7#
    • 1...Qg8
      • 2.Se7#
    • 1...Qxh2
      • 2.Se7#
    • 1...Qh3
      • 2.Se7#
    • 1...Qh5
      • 2.Se7#
    • 1...Qh6
      • 2.Se7#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Qh8
      • 2.Se7#
    • 1...Sg7
      • 2.Se7#
  • Tries
    • 1.Rg6?
      • threat
        • 2.Sd4#
      • 1...Qxg6
        • 2.Se7#
      • 1...f3
        • 2.Qc7#
      • 1...Qh8
        • 2.Se7#
      • 1...Sd6
        • 2.Sa5#
      • 1...Qg7!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Sa5#
      • 1...Qxc2
        • 2.Se7#
      • 1...Qe4
        • 2.Se7#
      • 1...Sc5
        • 2.Sd4#
      • 1...f3
        • 2.Rb6#
      • 1...a5
        • 2.Sxa5#

Anticipated by 80147(1973)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 12
  • Sets
    • Q(h);N_GUARD::S(H)
    • Q(h);N_GUARD,XQ(C)::S(H)
    • Q(h);N_GUARD::S(H),XQ(h)
    • S(f);S_CUTQ(h)::S(H)
  • Tries
    • Try
      • R(B);P_PINR(c),P_PINS(f)
      • Threat
        • S(D)
      • Vars
        • Q(h);N_GUARD,N_SPINS(f),XR(B)::S(H)
        • P(b);N_SPINR(c),OGATE::QAR1(C)
        • Q(h);N_GUARD::S(H)
        • S(a);N_GUARD,N_SPINS(f)::S(D)
      • Refutation
        • Q(h);
  • Actual
    • R(B);P_PINR(c),P_PINS(a)
    • Threat
      • S(D)
    • Vars
      • Q(h);N_GUARD,N_SPINS(a),XR(B)::S(H)
      • Q(h);N_GUARD,N_SPINR(c)::S(H)
      • S(f);N_GUARD,N_SPINS(a)::S(D)
      • P(b);N_SPINR(c)::R1(G)
      • P(d);::S(D),XP(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).