MESON Chess Problem Database

Problem Display
PID: 15674 (5R2/2bK1BQ1/3p3p/r1p2N2/1n2k1PP/3pppp1/4b3/8 w - - 0 1)

Gordian, Yury Markovic

2nd Place, Ukrainian Championship, 1986

5R2/2bK1BQ1/3p3p/r1p2N2/1n2k1PP/3pppp1/4b3/8

#2

7 + 12

3297 FIDE Album (1986-1988) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Sxd6+?
      • 1...Kf4
        • 2.Ba2#
        • 2.Bb3#
        • 2.Bc4#
        • 2.Bd5#
        • 2.Bh5#
        • 2.Be6#
        • 2.Be8#
        • 2.Bg8#
      • 1...Bxd6!
    • 1.Se7?
      • threat
        • 2.Bg6#
      • 1...Kf4
        • 2.Bd5#
      • 1...c4!
    • 1.Bc4?
      • threat
        • 2.Sxg3#
      • 1...Kf4
        • 2.Sxd6#
      • 1...g2
        • 2.Sg3#
      • 1...d5!
    • 1.Bd5+?
      • 1...Kf4
        • 2.Sd4#
        • 2.Sxd6#
        • 2.Sxh6#
        • 2.Se7#
      • 1...Sxd5
        • 2.Sxg3#
      • 1...Kxd5!
    • 1.Qxh6?
      • threat
        • 2.Re8#
        • 2.Qxe3#
      • 1...Ke5
        • 2.Re8#
      • 1...d2
        • 2.Qxe3#
      • 1...f2
        • 2.Qxe3#
      • 1...d5
        • 2.Qxe3#
      • 1...Ra8
        • 2.Qxe3#
      • 1...Bd8
        • 2.Qxe3#
      • 1...Sc2
        • 2.Re8#
      • 1...Sc6
        • 2.Qxe3#
      • 1...c4
        • 2.Qxe3#
      • 1...Sd5!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Se7#
      • 1...Kf4
        • 2.Sxh6#
      • 1...Kd5
        • 2.Sxe3#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(i);N_GUARD::QAR1(F)
  • Tries
    • Try
      • S(C);CHECK,XP(j)
      • Refutation
        • B(l);XS(C)
    • Try
      • S(C);
      • Threat
        • B(E)
      • Vars
        • K(g);P-FLIGHT::R(G)+B(E)
      • Refutation
        • P(i);
    • Try
      • B(E);
      • Threat
        • S(C),XP(e)
      • Vars
        • K(g);P-FLIGHT::R(G)+S(C),XP(j)
        • P(e);::S(C)
      • Refutation
        • P(j);
    • Try
      • B(E);CHECK
      • Vars
        • S(f);SBLOCK,XB(E)::S(C),XP(e)
      • Refutation
        • K(g);S_FLIGHT,XB(E)
    • Try
      • Q(F);XP(k)
      • Threat
        • DUALS(2)
      • Vars
        • K(g);P-FLIGHT::R(G)
        • P(b);::QAR1(F),XP(c)
        • P(d);::QAR1(F),XP(c)
        • P(j);::QAR1(F),XP(c)
        • R(h);::QAR1(F),XP(c)
        • B(l);::QAR1(F),XP(c)
        • S(f);::R(G)
        • S(f);::QAR1(F),XP(c)
        • P(i);::QAR1(F),XP(c)
      • Refutation
        • S(f);
  • Actual
    • B(E);
    • Threat
      • B(E)+S(C)
    • Vars
      • K(g);P-FLIGHT::R(G)+S(C),XP(k)
      • K(g);S_FLIGHT::S(C),XP(c)
      • P(i);N_GUARD::QAR1(F)
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