MESON Chess Problem Database

Problem Display
PID: 268669 (NB3R2/Kp3R2/1p2k3/b2ppp2/4p3/2p2p1b/1r1NQ3/2q2B1n w - - 0 1)

Gvozdjak, Peter

The Macedonian Problemist, 2022

NB3R2/Kp3R2/1p2k3/b2ppp2/4p3/2p2p1b/1r1NQ3/2q2B1n

#2

8 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qc4#
    • 1...f4
      • 2.Bxh3#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Sc7#
      • 1...dxc4
        • 2.Qxc4#
      • 1...b5!
    • 1.Bxh3?
      • threat
        • 2.Bxf5#
      • 1...d4
        • 2.Qc4#
      • 1...Sg3!
    • 1.Qc4?
      • threat
        • 2.Qc8#
      • 1...dxc4
        • 2.Bxc4#
      • 1...cxd2!
    • 1.Qb5?
      • threat
        • 2.Qd7#
        • 2.Qe8#
      • 1...Bb4
        • 2.Qd7#
      • 1...d4
        • 2.Bc4#
        • 2.Qc4#
        • 2.Qd7#
        • 2.Qxe5#
      • 1...Rxb5!
    • 1.Qh2?
      • threat
        • 2.Qxe5#
      • 1...f4
        • 2.Bxh3#
        • 2.Qxh3#
      • 1...Sg3!
    • 1.Qe3?
      • threat
        • 2.Qh6#
      • 1...d4
        • 2.Bc4#
      • 1...f4
        • 2.Bxh3#
      • 1...Qxd2!
    • 1.Qxe4?
      • threat
        • 2.Qxe5#
      • 1...dxe4
        • 2.Bc4#
      • 1...fxe4
        • 2.Bxh3#
      • 1...Qe1!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sc7#
      • 1...dxe4
        • 2.Qc4#
      • 1...fxe4
        • 2.Bxh3#
      • 1...b5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(i);OGATEB::QAB(C)
    • P(k);OGATEB::B(A),XB(f)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(F)
      • Vars
        • P(i);OGATE,XS(B)::QAB(C),XP(i)
      • Refutation
        • P(l);
    • Try
      • B(A);P_PINP(k),XB(f)
      • Threat
        • B(A),XP(k)
      • Vars
        • P(i);OGATEB::QAB(C)
      • Refutation
        • S(b);
    • Try
      • Q(C);P_PINP(i)
      • Threat
        • QAB(C)
      • Vars
        • P(i);N_SPINP(i),OGATE,XQ(C)::B(A),XP(i)
      • Refutation
        • P(d);XS(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);::QAB1(C)
      • Refutation
        • R(c);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(j)
      • Refutation
        • S(b);
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • P(i);OGATEB::B(A)
        • P(k);OGATEB::B(A),XB(f)
      • Refutation
        • Q(a);XS(B)
    • Try
      • Q(C);P_PINP(j),XP(g)
      • Threat
        • QAR1(C),XP(j)
      • Vars
        • P(i);N_SPINP(j),OGATEB,XQ(C)::B(A)
        • P(k);N_SPINP(j),OGATEB,XQ(C)::B(A),XB(f)
      • Refutation
        • Q(a);
  • Actual
    • S(B);XP(g)
    • Threat
      • S(F)
    • Vars
      • P(i);OGATEB,XS(B)::QAB(C)
      • P(k);OGATEB,XS(B)::B(A),XB(f)
      • P(l);N_GUARD::S(B)
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).