MESON Chess Problem Database

Problem Display
PID: 110181 (Q7/3p4/K2p4/1PRNRP2/3k3P/3N4/8/1B6 w - - 0 1)

Labai, Zoltan

Pedagogusok Lapja, 1982

Q7/3p4/K2p4/1PRNRP2/3k3P/3N4/8/1B6

#2

10 + 3

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kb6?
      • threat
        • 2.Qa1#
        • 2.Qa4#
      • 1...dxe5
        • 2.Qa4#
      • 1...dxc5!
    • 1.Kb7?
      • threat
        • 2.Qa1#
        • 2.Qa4#
      • 1...dxe5
        • 2.Qa4#
      • 1...dxc5!
    • 1.Sc1?
      • 1...Kxe5
        • 2.Qh8#
      • 1...dxc5
        • 2.Re4#
      • 1...dxe5
        • 2.Sb3#
      • 1...Kxc5!
    • 1.Sc3?
      • threat
        • 2.Se2#
        • 2.Re4#
        • 2.Qe4#
        • 2.Qd5#
      • 1...dxe5
        • 2.Qe4#
      • 1...d5
        • 2.Se2#
        • 2.Qxd5#
      • 1...dxc5!
    • 1.Sf6?
      • threat
        • 2.Re4#
        • 2.Qe4#
        • 2.Qd5#
      • 1...dxe5
        • 2.Qe4#
      • 1...d5
        • 2.Qxd5#
      • 1...dxc5!
    • 1.Qc6?
      • threat
        • 2.Rc4#
      • 1...dxc5
        • 2.Qxc5#
      • 1...dxc6!
    • 1.Qa7?
      • threat
        • 2.Rc1#
        • 2.Rc3#
        • 2.Rc6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...dxc5
        • 2.Qxc5#
      • 1...dxe5!
    • 1.Qb8?
      • 1...dxe5
        • 2.Qxe5#
      • 1...dxc5!
    • 1.Qc8?
      • threat
        • 2.Rc4#
      • 1...dxc5
        • 2.Qxc5#
      • 1...dxe5!
    • 1.Qe8?
      • threat
        • 2.Re4#
      • 1...dxe5
        • 2.Qxe5#
      • 1...dxc5!
    • 1.Qf8?
      • 1...dxc5
        • 2.Qxc5#
      • 1...dxe5!
    • 1.Qg8?
      • threat
        • 2.Qg1#
        • 2.Qg4#
      • 1...dxc5
        • 2.Qg4#
      • 1...dxe5!
    • 1.Qh8?
      • threat
        • 2.Re1#
        • 2.Re2#
        • 2.Re3#
        • 2.Re6#
        • 2.Re7#
        • 2.Re8#
      • 1...dxe5
        • 2.Qxe5#
      • 1...dxc5!
  • Keys
    • 1.Sb2!
      • 1...Kxc5
        • 2.Qa7#
      • 1...Kxe5
        • 2.Qh8#
      • 1...dxc5
        • 2.Re4#
      • 1...dxe5
        • 2.Rc4#

Anticipated by 263298(1979)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XR(G)::QAR(J)
      • Refutation
        • P(b);XR(E)
    • Try
      • K(I);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XR(G)::QAR(J)
      • Refutation
        • P(b);XR(E)
    • Try
      • S(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(G)::QAB(J)
        • P(b);SBLOCK,XR(E)::R1(G)
        • P(b);SBLOCK,XR(G)::S(B)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • S(F);
      • Threat
        • DUALS(4)
      • Vars
        • P(b);XR(G)::QAR1(J)
      • Refutation
        • P(b);XR(E)
    • Try
      • S(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);XR(G)::QAR1(J)
        • P(b);::QAR1(J),XP(b)
      • Refutation
        • P(b);XR(E)
    • Try
      • Q(J);
      • Threat
        • R1(E)
      • Vars
        • P(b);OGATE,XR(E)::QAB1(J),XP(b)
      • Refutation
        • P(c);XQ(J)
    • Try
      • Q(J);
      • Threat
        • DUALS(5)
      • Vars
        • P(b);OGATE,P_SPINP(b),XR(E)::QAB1(J),XP(b)
      • Refutation
        • P(b);XR(G)
    • Try
      • Q(J);
      • Vars
        • P(b);OGATE,XR(G)::QAB1(J),XP(b)
      • Refutation
        • P(b);XR(E)
    • Try
      • Q(J);
      • Threat
        • R1(E)
      • Vars
        • P(b);OGATE,XR(E)::QAB1(J),XP(b)
      • Refutation
        • P(b);XR(G)
    • Try
      • Q(J);
      • Threat
        • R1(G)
      • Vars
        • P(b);OGATE,XR(G)::QAB1(J),XP(b)
      • Refutation
        • P(b);XR(E)
    • Try
      • Q(J);
      • Vars
        • P(b);OGATE,XR(E)::QAB1(J),XP(b)
      • Refutation
        • P(b);XR(G)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XR(E)::QAR(J)
      • Refutation
        • P(b);XR(G)
    • Try
      • Q(J);
      • Threat
        • DUALS(6)
      • Vars
        • P(b);OGATE,P_SPINP(b),XR(G)::QAB1(J),XP(b)
      • Refutation
        • P(b);XR(E)
  • Actual
    • S(B);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(E)::QAB(J)
      • K(a);OGATEB,S_FLIGHT,XR(G)::QAB(J)
      • P(b);SBLOCK,XR(E)::R1(G)
      • P(b);SBLOCK,XR(G)::R1(E)
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).