MESON Chess Problem Database

Problem Display
PID: 173978 (8/8/1p2p3/4N2Q/2RNkp2/qp6/r1n4K/1B4B1 w - - 0 1)

Bottacchi, Antonio

3/4 Prize, L'Italia Scacchistica, 1918

8/8/1p2p3/4N2Q/2RNkp2/qp6/r1n4K/1B4B1

#2

7 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sec6?
      • threat
        • 2.Qf3#
      • 1...Kd3
        • 2.Qe2#
      • 1...f3
        • 2.Qxf3#
      • 1...b2!
    • 1.Sg6?
      • threat
        • 2.Qf3#
      • 1...Kd3
        • 2.Qe2#
      • 1...f3
        • 2.Qxf3#
      • 1...b2!
    • 1.Sd7?
      • threat
        • 2.Qf3#
      • 1...Kd3
        • 2.Qe2#
      • 1...f3
        • 2.Qxf3#
      • 1...b2!
    • 1.Sf7?
      • threat
        • 2.Qf3#
      • 1...Kd3
        • 2.Qe2#
      • 1...f3
        • 2.Qxf3#
      • 1...b2!
    • 1.Qg6+?
      • 1...Kxe5
        • 2.Qxe6#
      • 1...Kd5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qf3#
      • 1...Sa1+
        • 2.Se2#
      • 1...Se1+
        • 2.Se2#
      • 1...Se3+
        • 2.Sf2#
      • 1...Sb4+
        • 2.Se2#
      • 1...Sxd4+
        • 2.Sb2#
      • 1...Kxd3
        • 2.Qe2#
      • 1...f3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(G)
      • Vars
        • K(e);S_FLIGHT::QAB1(G)
        • P(f);::QAB1(G),XP(f)
      • Refutation
        • P(d);
    • Try
      • S(F);
      • Threat
        • QAB1(G)
      • Vars
        • K(e);S_FLIGHT::QAB1(G)
        • P(f);::QAB1(G),XP(f)
      • Refutation
        • P(d);
    • Try
      • S(F);
      • Threat
        • QAB1(G)
      • Vars
        • K(e);S_FLIGHT::QAB1(G)
        • P(f);::QAB1(G),XP(f)
      • Refutation
        • P(d);
    • Try
      • S(F);
      • Threat
        • QAB1(G)
      • Vars
        • K(e);S_FLIGHT::QAB1(G)
        • P(f);::QAB1(G),XP(f)
      • Refutation
        • P(d);
    • Try
      • Q(G);CHECK
      • Vars
        • K(e);N_SPINS(b),OGATEB,P-FLIGHT,XS(F)::QAR1(G),XP(h)
      • Refutation
        • K(e);N_SPINS(b),S_FLIGHT
  • Actual
    • S(F);N_PINS(b)
    • Threat
      • QAB1(G)
    • Vars
      • S(b);CHECK,N_GUARD::R(D)+S(E)
      • S(b);CHECK,SBLOCK::B(A)+S(F),DCHECK
      • S(b);CHECK,P_SPINS(b),XS(E)::B(A)+S(F)
      • K(e);P_SPINS(b),S_FLIGHT,XS(F)::QAB1(G)
      • P(f);::QAB1(G),XP(f)
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).