MESON Chess Problem Database

Problem Display
PID: 72685 (3b1K2/1nppP2b/2k3NR/7Q/Pqn5/5R1B/8/3r2B1 w - - 0 1)

Foschini, Ettore

1st Prize, Skakbladet, 1932

3b1K2/1nppP2b/2k3NR/7Q/Pqn5/5R1B/8/3r2B1

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Rf6#
    • 1...Qd6
      • 2.Qb5#
    • 1...Qxe7+
      • 2.Sxe7#
    • 1...Rd5
      • 2.Se5#
    • 1...Bxe7+
      • 2.Sxe7#
    • 1...Sd6
      • 2.exd8S#
    • 1...d5
      • 2.Se5#
    • 1...d6
      • 2.e8Q#
      • 2.e8B#
  • Tries
    • 1.Rf6+?
      • 1...Qd6
        • 2.Qb5#
      • 1...Rd6
        • 2.Bg2#
        • 2.Qf3#
      • 1...Sbd6
        • 2.exd8S#
      • 1...d6
        • 2.e8Q#
        • 2.e8B#
      • 1...Scd6!
    • 1.Qb5+?
      • 1...Kd6
        • 2.Rf6#
        • 2.Qxd7#
        • 2.e8S#
      • 1...Qxb5!
    • 1.Qd5+?
      • 1...Rxd5
        • 2.Se5#
      • 1...Kxd5!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Rf6#
      • 1...Qxe7+
        • 2.Sxe7#
      • 1...Bxe7+
        • 2.Sxe7#
      • 1...Kd6
        • 2.Rf6#
      • 1...d5
        • 2.Se5#
      • 1...Qd6
        • 2.Qb5#
      • 1...Rd5
        • 2.Se5#
      • 1...Scd6
        • 2.Rc3#
      • 1...Sbd6
        • 2.exd8S#
      • 1...d6
        • 2.e8Q#
        • 2.e8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);N_PINP(H),P-FLIGHT::R(B)
    • Q(b);N_GUARD,SBLOCK::QAB1(E)
    • Q(b);CHECK,XP(H)::R(G)+S(F),DCHECK,XQ(b)
    • R(a);SBLOCK::R(G)+S(F),DCHECK
    • B(i);CHECK,XP(H)::R(G)+S(F),DCHECK,XB(i)
    • S(e);N_PINP(H),SBLOCK::PXB(i)=S
    • P(g);SBLOCK::R(G)+S(F),DCHECK
    • P(g);N_PINP(H),SBLOCK::P=Q
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::QAB1(E)
        • S(e);N_PINP(H),P_SPINS(e)::PXB(i)=S
        • P(g);N_PINP(H),P_SPINP(g)::P=Q
      • Refutation
        • S(c);N_PINP(H),P_SPINS(c)
    • Try
      • Q(E);CHECK
      • Refutation
        • Q(b);N_PINP(H),XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • R(a);SBLOCK,XQ(E)::R(G)+S(F),DCHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(E)
  • Actual
    • B(C);
    • Threat
      • B(C)+R(B),DCHECK
    • Vars
      • Q(b);CHECK,XP(H)::R(G)+S(F),DCHECK,XQ(b)
      • B(i);CHECK,XP(H)::R(G)+S(F),DCHECK,XB(i)
      • K(d);N_PINP(H),P-FLIGHT::R(B)
      • P(g);SBLOCK::R(G)+S(F),DCHECK
      • Q(b);N_GUARD,SBLOCK::QAB1(E)
      • R(a);SBLOCK::R(G)+S(F),DCHECK
      • S(c);N_PINP(H),SBLOCK::B(C)+R(B),DCHECK
      • S(e);N_PINP(H),SBLOCK::PXB(i)=S
      • P(g);N_PINP(H),SBLOCK::P=Q
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).