MESON Chess Problem Database

Problem Display
PID: 247235 (6BB/6n1/3p1N1r/Q3npN1/2rk3p/3pRR1K/8/8 w - - 0 1)

Buchwald, Julius

The Problemist, 1954

6BB/6n1/3p1N1r/Q3npN1/2rk3p/3pRR1K/8/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qd5#
    • 1...Sg4
      • 2.Rxd3#
    • 1...Sc6
      • 2.Rxd3#
    • 1...Sg6
      • 2.Rxd3#
    • 1...Sd7
      • 2.Rxd3#
    • 1...Sf7
      • 2.Rxd3#
    • 1...Sh5
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Se8
      • 2.Se6#
    • 1...d2
      • 2.Qd5#
    • 1...f4
      • 2.Re4#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rf4#
      • 1...Sxf3
        • 2.Sxf3#
      • 1...Sg6
        • 2.Se6#
      • 1...Sh5
        • 2.Rxd3#
      • 1...Se6
        • 2.Rxd3#
      • 1...f4
        • 2.Re4#
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(b);SBLOCK::QAR1(D)
    • S(e);N_GUARD::R1(A),XP(a)
    • S(i);N_GUARD::S(E)
    • S(i);N_GUARD::S(E),XS(i)
    • P(a);::QAR1(D)
    • P(f);N_GUARD::R1(A)
  • Actual
    • S(F);
    • Threat
      • R(B)
    • Vars
      • S(e);P_SPINS(i),XR(B)::S(E),XS(e)
      • S(e);P_SPINS(i),S_CUTR(h)::S(E)
      • S(i);P_SPINS(e)::R1(A),XP(a)
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