Problem Display
PID: 245657 (8/8/1b2Q3/4P3/n1P5/8/r3kpKn/2BR1R2 w - - 0 1)

Musante, Horacio Luis

Magyar Sakkelet, 1957

8/8/1b2Q3/4P3/n1P5/8/r3kpKn/2BR1R2

#2

7 + 6


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Sxf1
      • 2.Qg4#
    • 1...Sg4
      • 2.Qxg4#
  • Tries
    • 1.Qg4+?
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sxg4!
    • 1.Qd5?
      • threat
        • 2.Qd3#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Ra3
        • 2.Qd2#
      • 1...Sb2
        • 2.Qd2#
      • 1...Sc5
        • 2.Rxf2#
      • 1...Bd4!
    • 1.Qf5?
      • threat
        • 2.Qd3#
      • 1...Ra3
        • 2.Qc2#
      • 1...Sb2
        • 2.Qc2#
      • 1...Sc5
        • 2.Qxf2#
      • 1...Rd2!
    • 1.Qd7?
      • threat
        • 2.Qd3#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Ra3
        • 2.Qd2#
      • 1...Sb2
        • 2.Qd2#
      • 1...Sc5
        • 2.Rxf2#
      • 1...Bd4!
    • 1.Qd6?
      • threat
        • 2.Qd3#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Ra3
        • 2.Qd2#
      • 1...Sb2
        • 2.Qd2#
      • 1...Sc5
        • 2.Rxf2#
      • 1...Bd4!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qd3#
      • 1...Rd2
        • 2.Rxd2#
      • 1...Ra3
        • 2.Rd2#
      • 1...Be3
        • 2.Qxe3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sb2
        • 2.Rd2#
      • 1...Sc5
        • 2.Qe3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD,XR(C)::QAB(G)
    • S(d);N_GUARD::QAB(G),XS(d)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB1(G),XS(d)
      • Refutation
        • S(d);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);N_GUARD::QAR1(G),XR(a)
        • R(a);N_GUARD::QAR1(G)
        • S(e);S_CUTR(a)::QAR1(G)
        • S(e);S_CUTB(f)::R1(C),XP(c)
      • Refutation
        • B(f);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);N_GUARD::QAR2(G)
        • S(e);S_CUTR(a)::QAR2(G)
        • S(e);S_CUTB(f)::QAR1(G),XP(c)
      • Refutation
        • R(a);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);N_GUARD::QAR1(G),XR(a)
        • R(a);N_GUARD::QAR1(G)
        • S(e);S_CUTR(a)::QAR1(G)
        • S(e);S_CUTB(f)::R1(C),XP(c)
      • Refutation
        • B(f);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);N_GUARD::QAR1(G),XR(a)
        • R(a);N_GUARD::QAR1(G)
        • S(e);S_CUTR(a)::QAR1(G)
        • S(e);S_CUTB(f)::R1(C),XP(c)
      • Refutation
        • B(f);
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • R(a);N_GUARD::R1(B),XR(a)
      • R(a);N_GUARD::R1(B)
      • B(f);N_GUARD::QAR1(G),XB(f)
      • S(d);N_GUARD::QAB1(G),XS(d)
      • S(e);S_CUTR(a)::R1(B)
      • S(e);S_CUTB(f)::QAR1(G)


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).