MESON Chess Problem Database

Problem Display
PID: 177967 (5Q2/2pN2K1/1pp2p2/2p1p3/b2k1p2/2N5/3P3b/5B2 w - - 0 1)

Sushkov, Yuri Akimovich

Sahs (Latvia), 1987

5Q2/2pN2K1/1pp2p2/2p1p3/b2k1p2/2N5/3P3b/5B2

#2

6 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qxf6#
    • 1...b5
      • 2.Qxc5#
  • Tries
    • 1.Sxc5?
      • threat
        • 2.Se6#
      • 1...bxc5
        • 2.Qd8#
      • 1...Bb3
        • 2.Sxb3#
      • 1...e4!
    • 1.Sb8?
      • threat
        • 2.Qd8#
      • 1...e4
        • 2.Qxf6#
      • 1...Bb3
        • 2.Sxc6#
      • 1...c4!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Sf3#
      • 1...Kxe5
        • 2.Qxf6#
      • 1...fxe5
        • 2.Qd8#
      • 1...Bd1
        • 2.Sxc6#
      • 1...f3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • P(f);OGATEB::QAB(F),XP(i)
    • P(g);N_GUARD::QAB1(F),XP(e)
  • Tries
    • Try
      • S(D);XP(e)
      • Threat
        • S(D)
      • Vars
        • P(g);SBLOCK,XS(D)::QAR(F)
        • B(b);N_GUARD::S(D),XB(b)
      • Refutation
        • P(f);
    • Try
      • S(D);
      • Threat
        • QAR(F)
      • Vars
        • P(f);OGATEB::QAB(F),XP(i)
        • B(b);N_GUARD::S(D),XP(h)
      • Refutation
        • P(e);
  • Actual
    • S(D);XP(f)
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(F),XP(i)
      • P(i);SBLOCK,XS(D)::QAR(F)
      • B(b);N_GUARD::S(D),XP(h)
      • P(d);::S(D),XP(d)
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Developed and maintained by Brian Stephenson.
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