MESON Chess Problem Database

Problem Display
PID: 243593 (8/3p4/3K4/4B2n/3N1p2/3p1P2/nQpkPP1p/7R w - - 0 1)

Bajtay, Jozsef

Nepszava, 1928

8/3p4/3K4/4B2n/3N1p2/3p1P2/nQpkPP1p/7R

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qb4#
    • 1...Sc3
      • 2.Qc1#
    • 1...Sb4
      • 2.Qxb4#
    • 1...Sg3
      • 2.Bxf4#
    • 1...Sf6
      • 2.Bxf4#
    • 1...Sg7
      • 2.Bxf4#
    • 1...dxe2
      • 2.Qxc2#
  • Tries
    • 1.Kxd7?
      • 1...dxe2
        • 2.Qxc2#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qc1#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sg3
        • 2.Bxf4#
      • 1...Sg7
        • 2.Bxf4#
      • 1...Sf6+!
    • 1.Sxc2?
      • threat
        • 2.Sa1#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sd4#
      • 1...Kxe2
        • 2.Sd4#
      • 1...dxe2
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
      • 1...dxc2!
    • 1.Qa3?
      • threat
        • 2.Qxd3#
      • 1...c1S
        • 2.Qb2#
      • 1...Sc1
        • 2.Qb4#
        • 2.Qa5#
      • 1...Sc3
        • 2.Qc1#
      • 1...Sb4
        • 2.Qxb4#
      • 1...dxe2!
    • 1.Qxa2?
      • threat
        • 2.Qa5#
      • 1...dxe2
        • 2.Qxc2#
      • 1...Kc3!
    • 1.Qb3?
      • threat
        • 2.Qxd3#
      • 1...dxe2
        • 2.Qxc2#
      • 1...c1S
        • 2.Rd1#
        • 2.Qb2#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sc3!
    • 1.exd3?
      • threat
        • 2.Qxc2#
      • 1...Kxd3
        • 2.Qxc2#
      • 1...Sb4!
    • 1.e4?
      • 1...Sg3
        • 2.Bxf4#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qc1#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sf6
        • 2.Bxf4#
      • 1...Sg7
        • 2.Bxf4#
      • 1...fxe4 ep!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxd3#
      • 1...Kc3
        • 2.Sb3#
      • 1...dxe2
        • 2.Sb3#
      • 1...c1S
        • 2.Qb2#
      • 1...Sc1
        • 2.Qb4#
        • 2.Qa5#
      • 1...Sb4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::QAB(B)
    • S(a);N_GUARD,SBLOCK::QAB1(B)
    • S(a);N_GUARD::QAB(B),XS(a)
    • S(g);N_GUARD::B(G),XP(f)
    • P(e);N_GUARD,XP(C)::QAR1(B),XP(b)
  • Tries
    • Try
      • K(H);P-FLIGHT,XP(h)
      • Vars
        • P(e);N_GUARD,XP(C)::QAR1(B),XP(b)
        • S(a);N_GUARD::QAB(B)
        • S(a);N_GUARD,SBLOCK::QAB1(B)
        • S(a);N_GUARD::QAB(B),XS(a)
        • S(g);N_GUARD::B(G),XP(f)
      • Refutation
        • S(g);CHECK
    • Try
      • S(F);XP(b)
      • Threat
        • DUALS(5)
      • Vars
        • K(c);P-FLIGHT,XP(C)::QAR(B)+S(F),DCHECK
        • P(e);SBLOCK,XP(C)::QAR(B)+S(F)
        • S(a);::QAR(B)+S(F),XS(a)
      • Refutation
        • P(e);P_SPINP(e),XS(F)
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAR1(B),XP(e)
      • Vars
        • P(b);OGATEB::QAR2(B)
        • S(a);N_GUARD,SBLOCK::QAB1(B)
        • S(a);N_GUARD::QAB(B),XS(a)
      • Refutation
        • P(e);XP(C)
    • Try
      • Q(B);XS(a)
      • Threat
        • QAB(B)
      • Vars
        • P(e);N_GUARD,XP(C)::QAR1(B),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAR1(B),XP(e)
      • Vars
        • P(e);N_GUARD,XP(C)::QAR1(B),XP(b)
        • S(a);N_GUARD::QAB(B)
        • S(a);N_GUARD::QAB(B),XS(a)
      • Refutation
        • S(a);
    • Try
      • P(C);XP(e)
      • Threat
        • QAR1(B),XP(b)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT,XP(C)::QAB1(B),XP(b)
      • Refutation
        • S(a);
    • Try
      • P(C);
      • Vars
        • S(g);N_GUARD::B(G),XP(f)
        • S(a);N_GUARD::QAB(B)
        • S(a);N_GUARD,SBLOCK::QAB1(B)
        • S(a);N_GUARD::QAB(B),XS(a)
      • Refutation
        • P(f);EP,XP(C)
  • Actual
    • Q(B);N_PINP(b)
    • Threat
      • QAR1(B),XP(e)
    • Vars
      • K(c);S_FLIGHT::B(G)+S(F)
      • P(e);XP(C)::S(F)
      • P(b);OGATEB::QAR2(B)
      • S(a);N_GUARD::QAB(B),XS(a)
HTML5 logo

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).