MESON Chess Problem Database

Problem Display
PID: 99991 (1BR5/8/5p2/1p1k1Pp1/bp4p1/1Pp2qN1/3pNP1K/3Q3B w - - 0 1)

Kardos, Tivadar

Magyar Sakkelet, 1953

1BR5/8/5p2/1p1k1Pp1/bp4p1/1Pp2qN1/3pNP1K/3Q3B

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh1+
      • 2.Qxh1#
    • 1...Qg2+
      • 2.Bxg2#
    • 1...Qe4
      • 2.Bxe4#
    • 1...Bxb3
      • 2.Qxb3#
    • 1...c2
      • 2.Qxd2#
  • Tries
    • 1.Kg1?
      • 1...Qg2+
        • 2.Bxg2#
      • 1...Bxb3
        • 2.Qxb3#
      • 1...Qe4
        • 2.Bxe4#
      • 1...c2
        • 2.Qxd2#
      • 1...Qxh1+!
    • 1.Bg2?
      • 1...Bxb3
        • 2.Qxb3#
      • 1...Qe4
        • 2.Bxe4#
      • 1...c2
        • 2.Qxd2#
      • 1...Qxg2+!
    • 1.Bf4?
      • 1...Qxh1+
        • 2.Qxh1#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...Bxb3
        • 2.Qxb3#
      • 1...Qe4
        • 2.Bxe4#
      • 1...c2
        • 2.Qxd2#
      • 1...gxf4!
    • 1.Rxc3?
      • threat
        • 2.Qxd2#
      • 1...Qxh1+
        • 2.Qxh1#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...bxc3!
    • 1.Qc2?
      • threat
        • 2.Qd3#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Qxh1+!
    • 1.Qb1?
      • threat
        • 2.Qd3#
      • 1...Qxh1+
        • 2.Qxh1#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...c2!
    • 1.bxa4?
      • threat
        • 2.Qb3#
      • 1...Qxh1+
        • 2.Qxh1#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...c2
        • 2.Qxd2#
      • 1...b3
        • 2.Qxb3#
      • 1...bxa4!
  • Keys
    • 1.Qa1!
      • 1...Qxh1+
        • 2.Qxh1#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...Bxb3
        • 2.Qa8#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Qe4
        • 2.Bxe4#
      • 1...c2
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK,N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
    • Q(c);CHECK,OGATEB::B(B),XQ(c)
    • Q(c);OGATE::B(B),XQ(c)
    • B(d);OGATE,XP(F)::QAB(A),XB(d)
    • P(b);N_GUARD::QAR(A),XP(a)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • Q(c);CHECK,OGATEB::B(B),XQ(c)
        • B(d);OGATE,XP(F)::QAB(A),XB(d)
        • Q(c);OGATE::B(B),XQ(c)
        • P(b);N_GUARD::QAR(A),XP(a)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(B)
    • Try
      • B(B);
      • Vars
        • B(d);OGATE,XP(F)::QAB(A),XB(d)
        • Q(c);OGATE::B(B),XQ(c)
        • P(b);N_GUARD::QAR(A),XP(a)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(B)
    • Try
      • B(I);
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
        • Q(c);CHECK,OGATEB::B(B),XQ(c)
        • B(d);OGATE,XP(F)::QAB(A),XB(d)
        • Q(c);OGATE::B(B),XQ(c)
        • P(b);N_GUARD::QAR(A),XP(a)
      • Refutation
        • P(i);XB(I)
    • Try
      • R(J);XP(b)
      • Threat
        • QAR(A),XP(a)
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
        • Q(c);CHECK,OGATEB::B(B),XQ(c)
      • Refutation
        • P(e);XR(J)
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAR2(A)
      • Vars
        • Q(c);CHECK,OGATEB::B(B),XQ(c)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XR(a)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(B)
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAR2(A)
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
        • Q(c);CHECK,OGATEB::B(B),XQ(c)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XR(a)
      • Refutation
        • P(b);
    • Try
      • P(F);XB(d)
      • Threat
        • QAB(A)
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
        • Q(c);CHECK,OGATEB::B(B),XQ(c)
        • P(b);N_GUARD::QAR(A),XP(a)
        • P(e);::QAB(A),XP(e)
      • Refutation
        • P(g);XP(F)
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • Q(c);CHECK,N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
      • Q(c);CHECK,OGATEB::B(B),XQ(c)
      • B(d);OGATE,XP(F)::QAB(A)
      • P(a);OGATEB::QAR(A),XQ(a)
      • P(a);OGATEB::QAR(A),XS(a)
      • P(a);OGATEB::QAR(A),XB(a)
      • P(a);OGATEB::QAR(A),XR(a)
      • Q(c);OGATE::B(B),XQ(c)
      • P(b);OGATE::QAR1(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).