MESON Chess Problem Database

Problem Display
PID: 79241 (1Q1rr3/1P6/8/KPkBp1N1/3R4/R1p2nq1/2n5/1b2N3 w - - 0 1)

Bukne, Roald

Schackvarlden, 1945

1Q1rr3/1P6/8/KPkBp1N1/3R4/R1p2nq1/2n5/1b2N3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Sxe6#
    • 1...Rf8
      • 2.Se6#
    • 1...Rg8
      • 2.Se6#
    • 1...Rh8
      • 2.Se6#
  • Tries
    • 1.Bb3?
      • threat
        • 2.Qa7#
      • 1...Kxd4
        • 2.Qa7#
      • 1...Rxd4
        • 2.Qc7#
      • 1...Rxb8
        • 2.Rd5#
      • 1...Sfxd4
        • 2.Se4#
      • 1...exd4
        • 2.Sd3#
      • 1...Rd5
        • 2.Rc4#
        • 2.Rxd5#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re6
        • 2.Sxe6#
      • 1...Scxd4!
  • Keys
    • 1.Ba2!
      • threat
        • 2.Qa7#
      • 1...Kxd4
        • 2.Qa7#
      • 1...Rxd4
        • 2.Qc7#
      • 1...Rxb8
        • 2.Rd5#
      • 1...Scxd4
        • 2.Rxc3#
      • 1...Sfxd4
        • 2.Se4#
      • 1...exd4
        • 2.Sd3#
      • 1...Rd5
        • 2.Rc4#
        • 2.Rxd5#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re6
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • R(i);N_GUARD::S(G),XR(i)
    • R(i);N_GUARD::S(G)
  • Tries
    • Try
      • B(F);
      • Threat
        • QAB(I)
      • Vars
        • K(f);S_FLIGHT,XR(C)::QAB(I)
        • R(h);SBLOCK,XR(C)::QAR2(I)
        • R(h);N_GUARD,XQ(I)::R1(C)
        • S(d);SBLOCK,XR(C)::S(G)
        • P(g);SBLOCK,XR(C)::S(A)
        • R(h);N_GUARD::QAB1(I),XR(h)
        • R(i);N_GUARD::S(G),XR(i)
      • Refutation
        • S(b);XR(C)
  • Actual
    • B(F);
    • Threat
      • QAB(I)
    • Vars
      • K(f);S_FLIGHT,XR(C)::QAB(I)
      • R(h);SBLOCK,XR(C)::QAR2(I)
      • R(h);N_GUARD,XQ(I)::R1(C)
      • S(b);SBLOCK,XR(C)::R(B),XP(c)
      • S(d);SBLOCK,XR(C)::S(G)
      • P(g);SBLOCK,XR(C)::S(A)
      • R(h);N_GUARD::QAB1(I),XR(h)
      • R(i);N_GUARD::S(G),XR(i)
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