MESON Chess Problem Database

Problem Display
PID: 41804 (5r1r/QP4N1/K2p4/3kp3/4p3/4n2b/2R1B3/6B1 w - - 0 1)

Salardini, Erio

De Problemist, 1929

5r1r/QP4N1/K2p4/3kp3/4p3/4n2b/2R1B3/6B1

#2

7 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Kb5?
      • threat
        • 2.Rd2#
      • 1...Sxc2
        • 2.Bc4#
        • 2.Qa2#
      • 1...Sf1
        • 2.Bc4#
        • 2.Qa2#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sf5
        • 2.Bc4#
        • 2.Qa2#
      • 1...Bd7+!
    • 1.Qb6?
      • threat
        • 2.Rd2#
      • 1...Sxc2
        • 2.Qb5#
      • 1...Sf1
        • 2.Bc4#
        • 2.Qa5#
        • 2.Qb3#
        • 2.Qb5#
        • 2.Qc6#
      • 1...Sc4
        • 2.Bxc4#
        • 2.Qb5#
      • 1...Sf5
        • 2.Bc4#
        • 2.Qa5#
        • 2.Qb3#
        • 2.Qb5#
        • 2.Qc6#
      • 1...Ra8+!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Rd2#
      • 1...Sc4+
        • 2.Bxc4#
      • 1...Kd4
        • 2.Kc6#
      • 1...Sxc2
        • 2.Qa2#
        • 2.Qa5#
      • 1...Sf1
        • 2.Bc4#
        • 2.Qa2#
        • 2.Qa5#
      • 1...Sf5
        • 2.Bc4#
        • 2.Qa2#
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • S(a);N_GUARD::B(C),XS(a)
      • Refutation
        • B(b);CHECK
    • Try
      • Q(E);
      • Threat
        • R(B)
      • Vars
        • S(a);XR(B)::QAR2(E)
      • Refutation
        • R(g);CHECK
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • R(B)
    • Vars
      • S(a);CHECK,N_GUARD::B(C),XS(a)
      • K(d);P-FLIGHT,P_SPINS(a)::QAB(E)+K(D)
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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).