MESON Chess Problem Database

Problem Display
PID: 287456 (8/8/8/2p5/6K1/4kN2/2P1p3/4Q3 w - - 0 1)

Zimmer, Eligiusz

Problem Paradise, 2021

8/8/8/2p5/6K1/4kN2/2P1p3/4Q3

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2026

SOLUTION

  • SOUND
  • Tries
    • 1.Qd2+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Kf2!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qe5#
        • 2.Qd3#
      • 1...Kf2!
    • 1.Qg3?
      • 1...Ke4
        • 2.Qe5#
      • 1...e1Q
        • 2.Qxe1#
      • 1...e1S
        • 2.Qxe1#
      • 1...e1B
        • 2.Qxe1#
      • 1...e1R
        • 2.Qxe1#
      • 1...c4!
    • 1.Qc1+?
      • 1...Kf2
        • 2.Qg1#
      • 1...Ke4!
    • 1.c4?
      • 1...Ke4
        • 2.Qxe2#
      • 1...Kd3!
  • Keys
    • 1.Qa1!
      • 1...Kf2
        • 2.Qg1#
      • 1...Ke4
        • 2.Qe5#
      • 1...e1Q
        • 2.Qxe1#
      • 1...e1S
        • 2.Qxe1#
      • 1...e1B
        • 2.Qxe1#
      • 1...e1R
        • 2.Qxe1#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR1(A)
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(B);
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • K(b);N_GUARD,S_FLIGHT::QAB1(A)
      • K(b);N_GUARD,P-FLIGHT::QAR1(A)
      • P(a);OGATEB::QAR2(A),XQ(a)
      • P(a);OGATEB::QAR2(A),XS(a)
      • P(a);OGATEB::QAR2(A),XB(a)
      • P(a);OGATEB::QAR2(A),XR(a)
      • P(c);N_GUARD::QAB1(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).