MESON Chess Problem Database

Problem Display
PID: 267041 (4B3/4K3/8/4N2p/1p2k2p/1P2B2P/8/4Q3 w - - 0 1)

Castellari, Umberto

5th Prize, Probleemblad 104. TT, 1959

4B3/4K3/8/4N2p/1p2k2p/1P2B2P/8/4Q3

#2

7 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • 1...Kxd3
        • 2.Bg6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5!
    • 1.Sf3?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kxf3
        • 2.Bc6#
      • 1...Kf5
        • 2.Qb1#
      • 1...Kd5!
    • 1.Sg4?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...hxg4!
    • 1.Sc6?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Kf3!
    • 1.Sg6?
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Kd3!
    • 1.Sd7?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Kf3!
    • 1.Sf7?
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Kd3!
    • 1.Qc3?
      • 1...Kd5
        • 2.Bc6#
        • 2.Qd4#
      • 1...Kf5
        • 2.Bg6#
      • 1...bxc3!
    • 1.Qg3?
      • 1...Kd5
        • 2.Bc6#
      • 1...Kf5
        • 2.Bg6#
        • 2.Qf4#
      • 1...hxg3!
    • 1.Qa1?
      • 1...Kd5
        • 2.Bc6#
        • 2.Qd4#
      • 1...Kf5
        • 2.Bg6#
      • 1...Kxe3!
  • Keys
    • 1.Sc4!
      • 1...Kd3
        • 2.Bg6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT,XS(E)::B(G)
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT,XS(E)::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • P(d);XS(E)
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
      • Refutation
        • P(a);XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
  • Actual
    • S(E);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::B(G)
      • K(b);N_GUARD,S_FLIGHT::QAB(A)
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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).