MESON Chess Problem Database

Problem Display
PID: 90044 (3R1BQ1/7B/2P5/1p2N3/bP5R/2k1pP2/np2Pp2/rrbn1K2 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 1997

3R1BQ1/7B/2P5/1p2N3/bP5R/2k1pP2/np2Pp2/rrbn1K2

#2

11 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxb4
      • 2.Bxb4#
  • Tries
    • 1.Rc4+?
      • 1...bxc4
        • 2.Qxc4#
      • 1...Kb3!
    • 1.Qd5?
      • threat
        • 2.Qd3#
      • 1...Sxb4
        • 2.Bxb4#
      • 1...Bc2!
    • 1.c7?
      • threat
        • 2.c8Q#
        • 2.c8R#
      • 1...Sxb4
        • 2.Bxb4#
      • 1...Bc2
        • 2.c8Q#
        • 2.c8R#
      • 1...Bd2
        • 2.c8Q#
        • 2.c8R#
      • 1...Bb3!
  • Keys
    • 1.Bg7!
      • 1...Sxb4
        • 2.Sg4#
      • 1...Bc2
        • 2.Sg6#
      • 1...Bd2
        • 2.Sd7#
      • 1...Bb3
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATE,XP(D)::B(J),XS(e)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • P(k);OGATE,XR(E)::QAR1(K),XP(k)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • S(e);OGATE,XP(D)::B(J),XS(e)
      • Refutation
        • B(j);
    • Try
      • P(G);
      • Threat
        • P=Q
      • Vars
        • S(e);OGATE,XP(D)::B(J),XS(e)
        • B(j);::P=Q
        • B(c);::P=Q
      • Refutation
        • B(j);
  • Actual
    • B(J);
    • Vars
      • S(e);SBLOCK,XP(D)::B(J)+S(F)
      • B(j);SBLOCK::B(J)+S(F)
      • B(c);SBLOCK::B(J)+S(F)
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