MESON Chess Problem Database

Problem Display
PID: 110465 (1r6/1n2p3/2p4b/2pk1B2/2N1pn2/p4N2/K2p3B/5Q2 w - - 0 1)

Paros, Gyorgy

Fonyod pelda, 1964

1r6/1n2p3/2p4b/2pk1B2/2N1pn2/p4N2/K2p3B/5Q2

#2

6 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Sb6#
    • 1...Sg2
      • 2.Sb6#
    • 1...Sd3
      • 2.Sb6#
    • 1...Sh3
      • 2.Sb6#
    • 1...Sh5
      • 2.Sb6#
    • 1...Se6
      • 2.Sb6#
    • 1...Sg6
      • 2.Sb6#
    • 1...Sd6
      • 2.Se3#
  • Tries
    • 1.Be6+?
      • 1...Sxe6
        • 2.Sb6#
      • 1...Kxe6!
    • 1.Qe2?
      • threat
        • 2.Qxe4#
      • 1...Sxe2
        • 2.Sb6#
      • 1...exf3
        • 2.Qe4#
      • 1...Sd6
        • 2.Se3#
      • 1...e3!
    • 1.Qd3+?
      • 1...Sxd3
        • 2.Sb6#
      • 1...exd3!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qxe4#
      • 1...Kxc4
        • 2.Qb3#
      • 1...exf3
        • 2.Qe4#
      • 1...Sd3
        • 2.Sb6#
      • 1...Sd6
        • 2.Se3#
      • 1...e3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • S(d);::S(E)
    • S(i);SBLOCK::S(E)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • S(d);SBLOCK,XB(F)::S(E)
      • Refutation
        • K(f);S_FLIGHT,XB(F)
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • S(d);XQ(A)::S(E)
        • P(c);XS(D)::QAB1(A)
        • S(i);SBLOCK::S(E)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • S(d);XQ(A)::S(E)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XP(c)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
      • P(c);XS(D)::QAB1(A)
      • S(d);::S(E)
      • S(i);SBLOCK::S(E)
      • P(c);::QAB1(A)
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Developed and maintained by Brian Stephenson.
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