MESON Chess Problem Database

Problem Display
PID: 67917 (1N3Q1K/7n/2p1p1B1/2B1k2p/qn2pNR1/1P6/3r4/2b5 w - - 0 1)

Tominic, Ivo

2nd Prize, Mat 05. TT, 1977

1N3Q1K/7n/2p1p1B1/2B1k2p/qn2pNR1/1P6/3r4/2b5

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Sd7#
    • 1...Rb2
      • 2.Sd7#
    • 1...Rc2
      • 2.Sd7#
    • 1...Re2
      • 2.Sd7#
    • 1...Rf2
      • 2.Sd7#
    • 1...Rg2
      • 2.Sd7#
    • 1...Rh2
      • 2.Sd7#
    • 1...Rd7
      • 2.Sxd7#
    • 1...Sd3
      • 2.Sd7#
    • 1...Sd5
      • 2.Sd7#
    • 1...Sg5
      • 2.Rxg5#
      • 2.Qg7#
  • Tries
    • 1.Bxh7?
      • threat
        • 2.Rg5#
        • 2.Qg7#
      • 1...Qa7
        • 2.Rg5#
      • 1...Rg2
        • 2.Sd7#
        • 2.Qg7#
      • 1...Rd7
        • 2.Sxd7#
        • 2.Rg5#
      • 1...Rd8
        • 2.Rg5#
      • 1...Sd5
        • 2.Sg6#
        • 2.Sd7#
        • 2.Rg5#
      • 1...hxg4!
    • 1.Qd6+?
      • 1...Kf6
        • 2.Sxh5#
        • 2.Sd7#
        • 2.Qxe6#
      • 1...Rxd6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qd6#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Rxd5
        • 2.Rxe4#
      • 1...Sxd5
        • 2.Sd7#
      • 1...Sxf8
        • 2.Rg5#
      • 1...cxd5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • R(b);N_GUARD::S(F)
    • R(b);N_GUARD::S(F),XR(b)
    • S(d);S_CUTR(b)::S(F)
  • Tries
    • Try
      • B(E);XS(j)
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);::R(C)
        • R(b);P_PINQ(G)::R(C)
      • Refutation
        • P(g);XR(C)
    • Try
      • Q(G);CHECK
      • Refutation
        • R(b);XQ(G)
  • Actual
    • S(B);
    • Threat
      • QAB1(G)
    • Vars
      • K(f);P-FLIGHT,XS(B)::QAR1(G)
      • R(b);SBLOCK,XS(B)::R1(C),XP(e)
      • S(d);SBLOCK,XS(B)::S(F)
      • S(j);N_GUARD,XQ(G)::R(C)
      • P(h);SBLOCK,XS(B)::QAB1(G)
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