MESON Chess Problem Database

Problem Display
PID: 72022 (1B6/q2p4/2prbp1p/b1n3QR/1nB1k1Pp/r4N2/P2p1R2/3K1N2 w - - 0 1)

Feldmann, Tibor (aka Florian, Tibor)

Kiss, Ivan

Szoghy, Jozsef

1st Comm., Debreceni Kereskedok, 1938

1B6/q2p4/2prbp1p/b1n3QR/1nB1k1Pp/r4N2/P2p1R2/3K1N2

#2

10 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa2
      • 2.Qe3#
    • 1...Re3
      • 2.Qxe3#
    • 1...Ra4
      • 2.Qe3#
    • 1...Rd3
      • 2.Qf4#
    • 1...Rd4
      • 2.Qf4#
    • 1...Rd5
      • 2.Qf4#
    • 1...Bxc4
      • 2.Qf5#
    • 1...Bxg4
      • 2.Qxg4#
    • 1...Bd5
      • 2.S1xd2#
      • 2.Qf5#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bf7
      • 2.Qf5#
    • 1...Bg8
      • 2.Qf5#
    • 1...Sbd3
      • 2.Qe3#
    • 1...Scd3
      • 2.S1xd2#
    • 1...h3
      • 2.Sg3#
  • Tries
    • 1.S3xd2+?
      • 1...Kd4
        • 2.Qxf6#
      • 1...Rxd2+!
    • 1.Re2+?
      • 1...Re3
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...Kxf3!
    • 1.Qg6+?
      • 1...Kf4
        • 2.Bxd6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...f5!
  • Keys
    • 1.Qxf6!
      • threat
        • 2.Re5#
        • 2.Qe5#
      • 1...Rxf3
        • 2.Qe5#
      • 1...Bxc4
        • 2.Qf5#
      • 1...Bf5
        • 2.Qe5#
        • 2.Qxf5#
      • 1...Rd5
        • 2.Qf4#
      • 1...Sbd3
        • 2.Re2#
      • 1...Scd3
        • 2.S3xd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • R(b);N_GUARD,XP(C)::QAR1(H)
    • R(b);N_GUARD::QAR1(H),XR(b)
    • R(b);N_GUARD::QAR1(H)
    • R(i);::QAR1(H)
    • B(j);N_GUARD,XB(F)::QAB1(H)
    • B(j);OGATE,P_PINS(E),XP(G)::QAR2(H),XB(j)
    • B(j);N_GUARD::QAB1(H),XB(j)
    • B(j);N_GUARD::QAB1(H)
    • S(c);S_CUTR(b)::QAR1(H)
    • S(g);S_CUTR(i)::S(B),XP(a)
    • P(e);N_GUARD::S(B)
  • Tries
    • Try
      • S(E);CHECK,P_SPINS(E),XP(a)
      • Vars
        • K(d);N_PINS(E),P-FLIGHT::QAB(H),XP(k)
      • Refutation
        • R(i);CHECK,XS(E)
    • Try
      • R(D);CHECK
      • Refutation
        • K(d);S_FLIGHT,XS(E)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINR(i)::B(J),XR(i)
        • B(j);N_GUARD,P_SPINB(j)::QAB1(H),XB(j)
      • Refutation
        • P(k);P_SPINP(k)
  • Actual
    • Q(H);XP(k)
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XS(E)::QAR1(H)
      • B(j);N_GUARD,XB(F)::QAB1(H)
      • R(i);::QAR1(H)
      • S(c);S_CUTR(b)::R(D)
      • S(g);S_CUTR(i)::S(E),XP(a)
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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).