MESON Chess Problem Database

Problem Display
PID: 231512 (1R1B4/8/1P2N3/bk2P3/1p2P3/1p1P4/1P4p1/Q5Kb w - - 0 1)

Toth, Gyula

2nd HM., Nepszava, 1927

1R1B4/8/1P2N3/bk2P3/1p2P3/1p1P4/1P4p1/Q5Kb

#2

10 + 6

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Sc7#
    • 1...Kc6
      • 2.Qa4#
    • 1...Bxb6+
      • 2.Rxb6#
  • Tries
    • 1.Bh4?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Qa4#
      • 1...Bxb6+!
    • 1.Bg5?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Qa4#
      • 1...Bxb6+!
    • 1.Bf6?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Qa4#
      • 1...Bxb6+!
    • 1.Bc7?
      • 1...Bxb6+
        • 2.Rxb6#
      • 1...Kc6
        • 2.Qa4#
      • 1...Ka6!
    • 1.Qc1?
      • 1...Ka4
        • 2.Qc6#
      • 1...Ka6
        • 2.Sc7#
        • 2.Qc4#
      • 1...Bxb6+!
    • 1.Qa2?
      • 1...Bxb6+
        • 2.Rxb6#
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Qa4#
      • 1...bxa2!
    • 1.Qa3?
      • 1...Bxb6+
        • 2.Rxb6#
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Qa4#
      • 1...bxa3!
    • 1.Qa4+?
      • 1...Ka6
        • 2.Sc5#
        • 2.Sc7#
      • 1...Kxa4!
    • 1.Qxa5+?
      • 1...Kc6
        • 2.Qa4#
        • 2.Qd5#
      • 1...Kxa5!
  • Keys
    • 1.Be7!
      • 1...Bxb6+
        • 2.Sd4#
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(f);P_SPINB(e),S_FLIGHT::S(H)
    • K(f);S_FLIGHT::QAB(A)
    • B(e);CHECK,OGATE,P_SPINB(e),XP(G)::R1(I),XB(e)
  • Tries
    • Try
      • B(J);
      • Vars
        • K(f);P_SPINB(e),S_FLIGHT::S(H)
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • B(e);CHECK,P_SPINB(e),XP(G)
    • Try
      • B(J);
      • Vars
        • K(f);P_SPINB(e),S_FLIGHT::S(H)
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • B(e);CHECK,P_SPINB(e),XP(G)
    • Try
      • B(J);
      • Vars
        • K(f);P_SPINB(e),S_FLIGHT::S(H)
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • B(e);CHECK,P_SPINB(e),XP(G)
    • Try
      • B(J);
      • Vars
        • B(e);CHECK,OGATE,P_SPINB(e),XP(G)::R1(I),XB(e)
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • K(f);P_SPINB(e),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • B(e);CHECK,P_SPINB(e),XP(G)
    • Try
      • Q(A);
      • Vars
        • B(e);CHECK,OGATE,P_SPINB(e),XP(G)::R1(I),XB(e)
        • K(f);P_SPINB(e),S_FLIGHT::S(H)
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Vars
        • B(e);CHECK,OGATE,P_SPINB(e),XP(G)::R1(I),XB(e)
        • K(f);P_SPINB(e),S_FLIGHT::S(H)
        • K(f);S_FLIGHT::QAB(A)
      • Refutation
        • P(d);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(f);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK,XB(e)
      • Refutation
        • K(f);P-FLIGHT,XQ(A)
  • Actual
    • B(J);
    • Vars
      • B(e);CHECK,P_SPINB(e),XP(G)::S(H)
      • K(f);P_SPINB(e),S_FLIGHT::S(H)
      • K(f);S_FLIGHT::QAB(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).