MESON Chess Problem Database

Problem Display
PID: 255069 (1B6/1r1B1NK1/2P3p1/R1Pkp2R/6Q1/4p1N1/8/b2n3b w - - 0 1)

Garofalo, Antonio

Probleemblad, 1984

1B6/1r1B1NK1/2P3p1/R1Pkp2R/6Q1/4p1N1/8/b2n3b

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Rxe5#
    • 1...Rb6
      • 2.cxb6#
    • 1...Bd4
      • 2.Qe6#
    • 1...Be4
      • 2.Qxe4#
    • 1...Sb2
      • 2.Rxe5#
    • 1...Sc3
      • 2.Rxe5#
  • Tries
    • 1.Rh4?
      • threat
        • 2.Qe6#
        • 2.Qc4#
      • 1...Rxd7
        • 2.Qxd7#
      • 1...Rb5
        • 2.Qc4#
      • 1...Bd4
        • 2.Qe6#
      • 1...Be4
        • 2.Qxe4#
      • 1...Rb4
        • 2.Qe6#
      • 1...Sb2
        • 2.Qe6#
      • 1...e4+!
    • 1.cxb7?
      • threat
        • 2.c6#
      • 1...Bd4
        • 2.Qe6#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sc3
        • 2.Rxe5#
      • 1...Bc3!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qc4#
      • 1...Rxd7+
        • 2.Qxd7#
      • 1...Bxe5+
        • 2.Rxe5#
      • 1...Be4
        • 2.Qxe4#
      • 1...Rb4
        • 2.Be6#
      • 1...Bd4
        • 2.Qe6#
      • 1...Sb2
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(h);S_CUTB(a)::R1(E),XP(f)
    • R(h);OGATE::R(C)+P(D),XR(h)
    • B(a);SBLOCK::QAB1(B)
    • B(c);N_GUARD::QAB1(B),XB(c)
    • S(b);S_CUTB(a)::R1(E),XP(f)
  • Tries
    • Try
      • R(E);N_PINP(f)
      • Threat
        • DUALS(2)
      • Vars
        • R(h);OGATE,P_PINS(H),XB(G)::QAR2(B),XR(h)
        • R(h);::QAB1(B)
        • B(a);::QAB1(B)
        • B(c);N_GUARD::QAB1(B),XB(c)
        • S(b);::QAB1(B)
      • Refutation
        • P(f);CHECK
    • Try
      • P(F);XR(h)
      • Threat
        • R(C)+P(D)
      • Vars
        • B(a);SBLOCK::QAB1(B)
        • B(c);N_GUARD::QAB1(B),XB(c)
        • S(b);S_CUTB(a)::R1(E),XP(f)
      • Refutation
        • B(a);
  • Actual
    • S(H);P_SPINB(G),P_SPINS(H),XP(f)
    • Threat
      • QAB1(B)
    • Vars
      • R(h);CHECK,XB(G)::QAR2(B),XR(h)
      • B(a);CHECK,OGATE,P_SPINB(a),XS(H)::R1(E),XB(a)
      • B(c);N_GUARD::QAB1(B),XB(c)
      • R(h);N_PINB(G)::B(G)
      • B(a);SBLOCK::QAB1(B)
      • S(b);N_PINS(H)::R(E)+S(H),XP(g)
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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).