MESON Chess Problem Database

Problem Display
PID: 193603 (8/1p6/1K2p3/2Bk4/4p3/3p4/3P2Q1/8 w - - 0 1)

Wastl, Rudolf

Pesti Naplo, 1915

8/1p6/1K2p3/2Bk4/4p3/3p4/3P2Q1/8

#2

4 + 5

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qg5#
    • 1...e5
      • 2.Qg8#
  • Tries
    • 1.Kb5?
      • 1...Ke5
        • 2.Qg5#
      • 1...e5
        • 2.Qg8#
      • 1...b6!
    • 1.Qg5+?
      • 1...e5
        • 2.Qg8#
      • 1...Kc4!
    • 1.Qg6?
      • 1...Kc4
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qg5#
      • 1...e5
        • 2.Qf7#
        • 2.Qg8#
      • 1...e3!
    • 1.Qg7?
      • threat
        • 2.Qd4#
      • 1...e5
        • 2.Qf7#
        • 2.Qg8#
      • 1...Kc4!
    • 1.Qg8?
      • 1...Kc4
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qg5#
      • 1...e3!
  • Keys
    • 1.Qg4!
      • 1...Kc4
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qg5#
      • 1...e3
        • 2.Qd4#
      • 1...e5
        • 2.Qg8#

Anticipated by 199304(1896)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),P-FLIGHT::QAR2(B)
    • P(d);OGATEB,SBLOCK::QAB(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT::QAR2(B)
        • P(d);OGATEB,SBLOCK::QAB(B)
      • Refutation
        • P(e);
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • P(d);OGATEB,P_SPINP(d),SBLOCK::QAB(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);N_PINP(b)
      • Vars
        • K(c);S_FLIGHT::QAB(B),XP(d)
        • K(c);P-FLIGHT::QAR2(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);N_PINP(b),P_PINP(d)
      • Vars
        • K(c);S_FLIGHT::QAB(B),XP(d)
        • K(c);N_SPINP(d),P-FLIGHT::QAR2(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);N_PINP(b)
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::QAB(B),XP(d)
      • K(c);P-FLIGHT::QAR2(B)
      • P(b);OGATE::QAR1(B)
      • P(d);OGATEB,SBLOCK::QAB(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).