MESON Chess Problem Database

Problem Display
PID: 267843 (3nRr2/3b2QB/N4q1n/3p3R/pPpk4/1P1P4/2PP4/bK3N2 w - - 0 1)

Mariz, Gabriel

The Problemist, 1999

3nRr2/3b2QB/N4q1n/3p3R/pPpk4/1P1P4/2PP4/bK3N2

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Qxe5#
    • 1...Rg8
      • 2.Qxf6#
    • 1...Rh8
      • 2.Qxf6#
    • 1...Bf5
      • 2.Qg1#
    • 1...Bc6
      • 2.Qa7#
    • 1...Be6
      • 2.Qa7#
    • 1...Sf5
      • 2.Qg4#
  • Tries
    • 1.Kxa1?
      • threat
        • 2.c3#
      • 1...Bf5
        • 2.Qg1#
      • 1...Sf5
        • 2.Qg4#
      • 1...c3!
    • 1.Se3?
      • threat
        • 2.Rxd5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bc6
        • 2.Qa7#
      • 1...Be6
        • 2.Qa7#
      • 1...Sf5
        • 2.Qg4#
      • 1...Bf5!
    • 1.Sc7?
      • threat
        • 2.Rxd5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bf5
        • 2.Sb5#
        • 2.Qg1#
      • 1...Be6
        • 2.Sb5#
      • 1...Sf5
        • 2.Qg4#
      • 1...Bc6!
    • 1.Be4?
      • threat
        • 2.Rxd5#
      • 1...dxe4
        • 2.Rxe4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bf5
        • 2.Qg1#
      • 1...Bc6
        • 2.Qa7#
      • 1...Be6
        • 2.Qa7#
      • 1...Sf5!
    • 1.dxc4?
      • threat
        • 2.Rxd5#
      • 1...dxc4
        • 2.Re4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bf5
        • 2.Qg1#
      • 1...Bc6
        • 2.Qa7#
      • 1...Be6
        • 2.Qa7#
      • 1...Sf5
        • 2.Qg4#
      • 1...axb3!
  • Keys
    • 1.bxc4!
      • threat
        • 2.Rxd5#
      • 1...dxc4
        • 2.Re4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bf5
        • 2.Qg1#
      • 1...Bc6
        • 2.Qa7#
      • 1...Be6
        • 2.Qa7#
      • 1...Sf5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(f);OGATE::QAB1(J),XQ(f)
    • R(j);N_GUARD::QAB(J),XQ(f)
    • B(h);::QAB(J)
    • B(h);OGATE::QAB(J)
    • S(g);N_GUARD,S_CUTB(h)::QAR(J)
  • Tries
    • Try
      • K(A);P-FLIGHT,XB(a)
      • Threat
        • P(C)
      • Vars
        • B(h);::QAB(J)
        • S(g);N_GUARD,S_CUTB(h)::QAR(J)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Threat
        • R1(H),XP(e)
      • Vars
        • Q(f);OGATE::QAB1(J),XQ(f)
        • B(h);OGATE::QAB(J)
        • S(g);N_GUARD,S_CUTB(h)::QAR(J)
      • Refutation
        • B(h);
    • Try
      • S(I);
      • Threat
        • R1(H),XP(e)
      • Vars
        • Q(f);OGATE::QAB1(J),XQ(f)
        • B(h);N_GUARD::S(I)
        • S(g);N_GUARD,S_CUTB(h)::QAR(J)
      • Refutation
        • B(h);
    • Try
      • B(K);
      • Threat
        • R1(H),XP(e)
      • Vars
        • P(e);OGATE,XB(K)::R1(L),XP(e)
        • Q(f);OGATE::QAB1(J),XQ(f)
        • B(h);::QAB(J)
        • B(h);OGATE::QAB(J)
      • Refutation
        • S(g);
    • Try
      • P(F);XP(c)
      • Threat
        • R1(H),XP(e)
      • Vars
        • P(e);N_GUARD,XP(F)::R1(L)
        • Q(f);OGATE::QAB1(J),XQ(f)
        • B(h);P_PINP(C)::QAB(J)
        • B(h);OGATE::QAB(J)
        • S(g);N_GUARD,S_CUTB(h)::QAR(J)
      • Refutation
        • P(b);XP(E)
  • Actual
    • P(E);XP(c)
    • Threat
      • R1(H),XP(e)
    • Vars
      • P(e);N_GUARD,XP(E)::R1(L)
      • Q(f);OGATE::QAB1(J),XQ(f)
      • B(h);::QAB(J)
      • B(h);OGATE::QAB(J)
      • S(g);N_GUARD,S_CUTB(h)::QAR(J)
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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).