MESON Chess Problem Database

Problem Display
PID: 71083 (4Q2N/4p3/1p2P3/1K4P1/3Pk1N1/1p2P1pB/1P4R1/8 w - - 0 1)

Sallay, Bela Albert

Pesti Hirlap, 1932

4Q2N/4p3/1p2P3/1K4P1/3Pk1N1/1p2P1pB/1P4R1/8

#2

11 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qg6#
    • 1...Kf3
      • 2.Qc6#
      • 2.Qa8#
    • 1...Kd5
      • 2.Qc6#
    • 1...Kf5
      • 2.Qg6#
  • Tries
    • 1.Kc4?
      • 1...Kf3
        • 2.Qc6#
        • 2.Qa8#
      • 1...Kf5
        • 2.Qg6#
      • 1...b5+!
    • 1.Kxb6?
      • 1...Kf3
        • 2.Qc6#
        • 2.Qa8#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#
      • 1...Kd3!
    • 1.Se5?
      • 1...Kd5
        • 2.Qc6#
      • 1...Kxe3!
    • 1.Rd2?
      • 1...Kf3
        • 2.Qc6#
        • 2.Qa8#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#
      • 1...g2!
    • 1.Rxg3?
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Sf2#
        • 2.Sf6#
        • 2.Qg6#
      • 1...Kd3!
    • 1.Qc6+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qg6+?
      • 1...Kf3
        • 2.Qf5#
      • 1...Kd5!
    • 1.Qd7?
      • 1...Kf3
        • 2.Qc6#
        • 2.Qd5#
        • 2.Qb7#
      • 1...Kf5
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qf7?
      • 1...Kd3
        • 2.Qg6#
        • 2.Qf5#
        • 2.Qh7#
      • 1...Kd5!
    • 1.Qa8+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qb8?
      • 1...Kf3
        • 2.Qf4#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kd3!
    • 1.Qd8?
      • 1...Kf3
        • 2.Qd5#
        • 2.Qa8#
      • 1...Kf5
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qf8?
      • 1...Kd3
        • 2.Qf5#
      • 1...Kd5!
    • 1.Qg8?
      • 1...Kd3
        • 2.Qh7#
        • 2.Qg6#
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Sf2#
        • 2.Sf6#
        • 2.Qg6#
      • 1...Kd5!
    • 1.d5?
      • 1...Kd3
        • 2.Qg6#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#
      • 1...Kf3!
  • Keys
    • 1.Qxe7!
      • 1...Kd3
        • 2.Qh7#
      • 1...Kf3
        • 2.Qb7#
      • 1...Kd5
        • 2.Sf6#
      • 1...Kf5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(J)
    • K(c);S_FLIGHT::QAB1(J)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • P(d);CHECK
    • Try
      • K(G);P-FLIGHT,XP(d)
      • Vars
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • K(c);P-FLIGHT,XP(C)
    • Try
      • R(B);
      • Vars
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • P(b);
    • Try
      • R(B);XP(b)
      • Vars
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::QAR2(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::QAR1(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::QAR2(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::QAB(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::QAB(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(E);
      • Vars
        • K(c);S_FLIGHT::QAB(J)
        • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(J)
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(J);XP(e)
    • Vars
      • K(c);S_FLIGHT::QAB(J)
      • K(c);S_FLIGHT::S(F)
      • K(c);S_FLIGHT::B(D)+S(F)
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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).