MESON Chess Problem Database

Problem Display
PID: 124357 (8/b6B/3N4/R4n1r/K2kN1r1/2p4n/4Q3/8 w - - 0 1)

Dittrich, Stefan

Muller, Dieter

Mat 05. TT, 1977

8/b6B/3N4/R4n1r/K2kN1r1/2p4n/4Q3/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Qxe4#
    • 1...Rh4
      • 2.Sxf5#
    • 1...Rh6
      • 2.Sxf5#
    • 1...Rxh7
      • 2.Sxf5#
    • 1...Sg5
      • 2.Sxf5#
    • 1...c2
      • 2.Qd2#
  • Keys
    • 1.Sf6!
      • threat
        • 2.Rd5#
      • 1...Sxd6
        • 2.Qd3#
      • 1...c2
        • 2.Qd2#
      • 1...Bc5
        • 2.Sb5#
      • 1...Sf4
        • 2.Qe4#
      • 1...Se3
        • 2.Qd3#
      • 1...Sg3
        • 2.Qd3#
      • 1...Sh4
        • 2.Qd3#
      • 1...Sh6
        • 2.Qd3#
      • 1...Se7
        • 2.Qd3#
      • 1...Sg7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 5
  • Sets
    • R(d);OGATE,XS(C)::QAR1(A),XR(d)
    • R(f);N_GUARD::S(E),XS(e)
    • R(f);N_GUARD,XB(F)::S(E),XS(e)
    • S(b);S_CUTR(f)::S(E),XS(e)
    • P(a);N_GUARD::QAR2(A)
  • Actual
    • S(C);
    • Threat
      • R1(D)
    • Vars
      • S(e);XS(E)::QAR1(A)
      • P(a);N_GUARD::QAR2(A)
      • B(g);SBLOCK::S(E)
      • S(b);S_CUTR(d)::QAR1(A)
      • S(e);::QAR1(A)
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