MESON Chess Problem Database

Problem Display
PID: 161092 (2b2R2/BN6/3Q3r/1R1pnp1N/KP2kb2/p3p3/4P3/3r4 w - - 0 1)

Jorgensen, Walther Martinus Johannes

1st HM., Magasinet, 1944

2b2R2/BN6/3Q3r/1R1pnp1N/KP2kb2/p3p3/4P3/3r4

#2

9 + 10

15593 170 Skakopgaver (Jorgensen) 1975

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxd5#
    • 1...Rb1
      • 2.Qxd5#
    • 1...Rc1
      • 2.Qxd5#
    • 1...Re1
      • 2.Qxd5#
    • 1...Rf1
      • 2.Qxd5#
    • 1...Rg1
      • 2.Qxd5#
    • 1...Rh1
      • 2.Qxd5#
    • 1...Rd4
      • 2.Sc5#
    • 1...Rxd6
      • 2.Sxd6#
    • 1...Rf6
      • 2.Sxf6#
    • 1...Rh7
      • 2.Sf6#
    • 1...Rh8
      • 2.Sf6#
    • 1...Sd3
      • 2.Qxd5#
    • 1...Sf3
      • 2.Qxf4#
    • 1...Sc4
      • 2.Qxf4#
    • 1...Sg4
      • 2.Qxf4#
    • 1...Sc6
      • 2.Qxf4#
    • 1...Sg6
      • 2.Sf6#
    • 1...Sd7
      • 2.Qxf4#
    • 1...Sf7
      • 2.Qxf4#
    • 1...d4
      • 2.Sc5#
      • 2.Qd5#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Sd6#
      • 1...Bxb7
        • 2.Qxf5#
      • 1...Rxe6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sd6#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...Bxb7
        • 2.Qxf5#
      • 1...Sd3
        • 2.Qd4#
      • 1...Sf3
        • 2.Sc5#
      • 1...Sc4
        • 2.Sc5#
      • 1...Sg4
        • 2.Sc5#
      • 1...Sc6
        • 2.Sc5#
      • 1...Sg6
        • 2.Sc5#
      • 1...Sd7
        • 2.Qxf5#
      • 1...Sf7
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 8
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(a);N_GUARD::QAB1(F),XP(f)
    • R(a);P_PINP(C),SBLOCK::S(H)
    • R(i);XQ(F)::S(H),XR(i)
    • R(i);N_GUARD::S(E),XR(i)
    • R(i);N_GUARD::S(E)
    • S(g);S_CUTR(a)::QAB1(F),XP(f)
    • S(g);OGATE::QAR1(F),XB(e)
    • S(g);S_CUTR(i)::S(E)
  • Tries
    • Try
      • Q(F);P_PINS(g)
      • Threat
        • S(H)
      • Vars
        • B(j);N_GUARD,XS(H)::QAB1(F),XP(h)
      • Refutation
        • R(i);N_SPINS(g),XQ(F)
  • Actual
    • Q(F);
    • Threat
      • S(H)
    • Vars
      • R(i);XQ(F)::S(E),XR(i)
      • B(j);N_GUARD,XS(H)::QAB1(F),XP(h)
      • S(g);OGATE::QAR1(F)
      • S(g);::S(H)
      • S(g);S_CUTB(j)::QAB1(F),XP(h)
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