MESON Chess Problem Database

Problem Display
PID: 159133 (1R6/2Rr2p1/2p5/2p2pK1/k1N1b3/p1B5/Pn4B1/7Q w - - 0 1)

Mira-Kraft, Edwin

Kieler Nachrichten, 2000

1R6/2Rr2p1/2p5/2p2pK1/k1N1b3/p1B5/Pn4B1/7Q

#2

8 + 9

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Ra7#
    • 1...Rd2
      • 2.Ra7#
    • 1...Rd3
      • 2.Ra7#
    • 1...Rd4
      • 2.Ra7#
    • 1...Rd5
      • 2.Ra7#
    • 1...Rd6
      • 2.Ra7#
    • 1...Rd8
      • 2.Ra7#
    • 1...Bb1
      • 2.Bxc6#
    • 1...Bc2
      • 2.Bxc6#
    • 1...Bd3
      • 2.Bxc6#
    • 1...Sd3
      • 2.Qd1#
  • Tries
    • 1.Bxe4?
      • threat
        • 2.Bc2#
        • 2.Bxc6#
      • 1...Rxc7
        • 2.Bc2#
      • 1...Rd2
        • 2.Bxc6#
        • 2.Ra7#
      • 1...Rd3
        • 2.Bxc6#
        • 2.Ra7#
      • 1...Rd5
        • 2.Bc2#
        • 2.Ra7#
      • 1...Rd6
        • 2.Bc2#
        • 2.Ra7#
      • 1...Sd3
        • 2.Bxc6#
        • 2.Qd1#
      • 1...fxe4!
    • 1.Qd1+?
      • 1...Rxd1
        • 2.Ra7#
      • 1...Bc2
        • 2.Bxc6#
        • 2.Qxc2#
      • 1...Sxd1!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sb6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Rd3
        • 2.Ra7#
      • 1...Bd3
        • 2.Bxc6#
      • 1...Sd3
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(h);N_GUARD::R(G)
    • B(d);OGATE::B(C),XP(g)
    • S(a);N_GUARD,S_CUTB(d),S_CUTR(h)::QAB(A)
  • Tries
    • Try
      • B(C);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XR(G)::B(C)
      • Refutation
        • P(f);XB(C)
    • Try
      • Q(A);CHECK
      • Vars
        • R(h);XQ(A)::R(G)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • S(a);OGATE,XS(E)::QAR2(A),XS(a)
      • R(h);N_GUARD::R(G)
      • B(d);OGATE::B(C),XP(g)
      • S(a);N_GUARD,S_CUTB(d),S_CUTR(h)::QAB(A)
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