MESON Chess Problem Database

Problem Display
PID: 203221 (8/8/5p2/5K2/1Qpk1B2/8/4P3/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Schweizerische Schachzeitung, 1924

8/8/5p2/5K2/1Qpk1B2/8/4P3/8

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qd6#
  • Tries
    • 1.Ke6?
      • 1...Ke4
        • 2.Qxc4#
      • 1...f5!
    • 1.Kxf6?
      • 1...Ke4
        • 2.Qxc4#
      • 1...Kd5!
    • 1.Bh2?
      • 1...Kd5
        • 2.Qd6#
      • 1...Ke3!
    • 1.Be3+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxe3!
    • 1.Bg3?
      • 1...Kd5
        • 2.Qd6#
      • 1...Ke3!
    • 1.Bd6?
      • threat
        • 2.Qd2#
      • 1...Kd5
        • 2.Qc5#
      • 1...Ke3!
    • 1.Bc7?
      • 1...Kd5
        • 2.Qd6#
      • 1...Ke3!
    • 1.Bb8?
      • 1...Kd5
        • 2.Qd6#
      • 1...Ke3!
    • 1.Qa3?
      • 1...Kd5
        • 2.Qd6#
      • 1...c3!
    • 1.Qb5?
      • 1...c3
        • 2.e3#
      • 1...Kc3!
    • 1.Qb6+?
      • 1...Kd5
        • 2.Qd6#
        • 2.e4#
      • 1...Kc3!
    • 1.e3+?
      • 1...Kd5
        • 2.Qd6#
        • 2.Qb5#
      • 1...Kd3!
  • Keys
    • 1.e4!
      • 1...Kd3
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • K(D);P-FLIGHT,XP(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT,XB(C)
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • P(a);SBLOCK::P(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(A);CHECK
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
  • Actual
    • P(A);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
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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).