MESON Chess Problem Database

Problem Display
PID: 267488 (8/2p1Rp2/1p5P/r3Nk1K/5N2/3P4/2p2Rp1/1b3q2 w - - 0 1)

Bottacchi, Antonio

2nd HM., In Tramway (Lo Scacchista), 1920

8/2p1Rp2/1p5P/r3Nk1K/5N2/3P4/2p2Rp1/1b3q2

#2

7 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Sd5#
    • 1...Qe2+
      • 2.Sxe2#
    • 1...Qd1+
      • 2.Se2#
    • 1...Qh1+
      • 2.Sh3#
    • 1...Rxe5
      • 2.Rxf7#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Rxf7#
      • 1...Qh1+
        • 2.Sh3#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...f6
        • 2.Se3#
      • 1...Ba2!
    • 1.Sc6?
      • threat
        • 2.Rxf7#
      • 1...Kf6+
        • 2.Sd5#
      • 1...Qe2+
        • 2.Sxe2#
      • 1...Qd1+
        • 2.Se2#
      • 1...Qh1+
        • 2.Sh3#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...f6
        • 2.Sd4#
      • 1...Ba2!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rxf7#
      • 1...Kf6+
        • 2.Sd5#
      • 1...Qe2+
        • 2.Sxe2#
      • 1...Qd1+
        • 2.Se2#
      • 1...Qh1+
        • 2.Sh3#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...f6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(f);P-FLIGHT,P_PINS(D)::R(A)+S(C),DCHECK
    • Q(b);CHECK,N_GUARD::R(A)+S(C),XQ(b)
    • Q(b);CHECK,N_GUARD::R(A)+S(C)
    • R(e);SBLOCK,XS(D)::R(G),XP(i)
  • Tries
    • Try
      • S(D);
      • Threat
        • R(G),XP(i)
      • Vars
        • Q(b);CHECK,N_GUARD::R(A)+S(C)
        • Q(b);XP(B)::R(A)+S(C),XQ(b)
        • P(i);SBLOCK::S(D)
      • Refutation
        • B(a);
    • Try
      • S(D);
      • Threat
        • R(G),XP(i)
      • Vars
        • K(f);CHECK,P-FLIGHT::R(A)+S(C),DCHECK
        • Q(b);CHECK,N_GUARD::R(A)+S(C),XQ(b)
        • Q(b);CHECK,N_GUARD::R(A)+S(C)
        • Q(b);XP(B)::R(A)+S(C),XQ(b)
        • P(i);SBLOCK::S(D)
      • Refutation
        • B(a);
  • Actual
    • S(D);
    • Threat
      • R(G),XP(i)
    • Vars
      • K(f);CHECK,P-FLIGHT::R(A)+S(C),DCHECK
      • Q(b);CHECK,N_GUARD::R(A)+S(C),XQ(b)
      • Q(b);CHECK,N_GUARD::R(A)+S(C)
      • Q(b);XP(B)::R(A)+S(C),XQ(b)
      • P(i);SBLOCK::S(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).