MESON Chess Problem Database

Problem Display
PID: 78545 (2NR2bB/6nq/K1P5/1Pk5/R4N2/8/8/8 w - - 0 1)

Jorgensen, Walther Martinus Johannes

3rd HM., Magasinet, 1944

2NR2bB/6nq/K1P5/1Pk5/R4N2/8/8/8

#2

8 + 4

15593 170 Skakopgaver (Jorgensen) 1975
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Sxd3#
    • 1...Qh1
      • 2.Sd3#
    • 1...Qh2
      • 2.Sd3#
    • 1...Qh4
      • 2.Sd3#
    • 1...Qh5
      • 2.Sd3#
    • 1...Qh6
      • 2.Sd3#
    • 1...Qxh8
      • 2.Sd3#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Sf5
      • 2.Sd3#
    • 1...Sh5
      • 2.Bd4#
    • 1...Se6
      • 2.Rd5#
    • 1...Se8
      • 2.Bd4#
  • Tries
    • 1.Bxg7?
      • threat
        • 2.Bd4#
      • 1...Qxg7
        • 2.Sd3#
      • 1...Qd3
        • 2.Sxd3#
      • 1...Qh8
        • 2.Sd3#
        • 2.Bf8#
      • 1...Qe4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sb7#
      • 1...Sf5
        • 2.Se4#
      • 1...Sh5
        • 2.Bd4#
      • 1...Se6
        • 2.Rc4#
      • 1...Se8
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(c);N_GUARD,P_PINP(C)::S(B),XQ(c)
    • Q(c);N_GUARD::S(B)
    • Q(c);N_GUARD,P_PINP(E)::S(B)
    • Q(c);N_GUARD,XB(H)::S(B)
    • B(d);N_GUARD::R1(G),XB(d)
    • S(b);S_CUTQ(c)::S(B)
    • S(b);OGATE::B(H)
    • S(b);S_CUTB(d)::R1(G)
  • Tries
    • Try
      • B(H);XS(b)
      • Threat
        • B(H)
      • Vars
        • Q(c);N_GUARD,XB(H)::S(B)
        • Q(c);N_GUARD,P_PINP(C)::S(B),XQ(c)
      • Refutation
        • Q(c);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • S(b);S_CUTQ(c)::S(F)
      • S(b);OGATE::B(H)
      • S(b);S_CUTB(d)::R1(A)
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