MESON Chess Problem Database

Problem Display
PID: 35820 (6Kb/2p3P1/2pp3Q/1PPk4/R1p5/1N4N1/8/B2b1n2 w - - 0 1)

Maleika, Gerhard

3rd HM., harmonie TT, 1992

6Kb/2p3P1/2pp3Q/1PPk4/R1p5/1N4N1/8/B2b1n2

#2

9 + 8

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...dxc5
      • 2.Qxc6#
  • Tries
    • 1.Qh5+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Bxh5!
    • 1.Qg6?
      • threat
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Bxb3
        • 2.Qf5#
      • 1...Bxg7
        • 2.Qe4#
        • 2.Qf7#
      • 1...cxb3
        • 2.Qf5#
      • 1...cxb5
        • 2.Qe4#
      • 1...dxc5
        • 2.Qxc6#
      • 1...c3
        • 2.Qe4#
        • 2.Qf5#
      • 1...Bc2
        • 2.Qf7#
      • 1...Bf3
        • 2.Qf5#
        • 2.Qf7#
      • 1...Bg4
        • 2.Qe4#
      • 1...Bh5
        • 2.Qe4#
        • 2.Qf5#
      • 1...Sd2
        • 2.Qf5#
        • 2.Qf7#
      • 1...Se3
        • 2.Qe4#
        • 2.Qf7#
      • 1...Sxg3!
    • 1.gxh8Q?
      • threat
        • 2.Qd4#
      • 1...dxc5
        • 2.Qe5#
        • 2.Qxc6#
      • 1...cxb5!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qxc4#
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Ke6
        • 2.Qf7#
      • 1...Bxb3
        • 2.Qf5#
      • 1...Bxg7
        • 2.Qxc4#
        • 2.Qe4#
        • 2.Qf7#
      • 1...Sxg3
        • 2.Qxc4#
      • 1...cxb3
        • 2.Qc4#
        • 2.Qf5#
      • 1...cxb5
        • 2.Qe4#
      • 1...dxc5
        • 2.Qe5#
      • 1...Bc2
        • 2.Qxc4#
        • 2.Qf7#
      • 1...Be2
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Bf3
        • 2.Qxc4#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Bg4
        • 2.Qxc4#
        • 2.Qe4#
      • 1...Bh5
        • 2.Qxc4#
        • 2.Qe4#
        • 2.Qf5#
      • 1...Sd2
        • 2.Qf5#
        • 2.Qf7#
      • 1...Se3
        • 2.Qe4#
        • 2.Qf7#
      • 1...c3
        • 2.Qe4#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATE,XP(F)::QAB1(G),XP(e)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(G)
      • Refutation
        • B(a);XQ(G)
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);XS(B)::QAR2(G)
        • P(c);XS(B)::QAR2(G)
        • P(e);XP(E)::QAB1(G)
        • P(f);OGATE,XP(F)::QAB1(G),XP(e)
        • B(a);::QAB(G)
        • B(a);::QAB1(G)
      • Refutation
        • S(b);XS(C)
    • Try
      • P(H);XB(h)
      • Threat
        • QAR1(H)
      • Refutation
        • P(e);XP(E)
  • Actual
    • Q(G);
    • Threat
      • DUALS(4)
    • Vars
      • K(d);S_FLIGHT::QAB1(G)
      • B(a);XS(B)::QAR2(G)
      • S(b);XS(C)::QAB1(G),XP(c)
      • P(e);XP(E)::QAB1(G)
      • P(f);N_GUARD,XP(F)::QAR1(G)
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