MESON Chess Problem Database

Problem Display
PID: 179004 (Nr1b4/2P4b/3n4/1p1P1Q1R/1Pkp4/3N4/P1KnP3/1R2B3 w - - 0 1)

Thomsen, Svend Orvar

Magasinet, 1935

Nr1b4/2P4b/3n4/1p1P1Q1R/1Pkp4/3N4/P1KnP3/1R2B3

#2

12 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Sxb6#
    • 1...Rc8
      • 2.Sb6#
    • 1...Sxb1
      • 2.Sb2#
    • 1...Sf1
      • 2.Sb2#
    • 1...Sb3
      • 2.Sb2#
      • 2.axb3#
    • 1...Sf3
      • 2.Sb2#
    • 1...S2e4
      • 2.Sb2#
    • 1...Sb7
      • 2.Sb6#
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qc6#
      • 1...Bxd3+
        • 2.exd3#
      • 1...Rb6
        • 2.Sxb6#
      • 1...Sb3
        • 2.axb3#
      • 1...S2e4
        • 2.Sb2#
      • 1...S6e4
        • 2.Se5#
      • 1...Sb7
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(g);N_GUARD::S(L),XR(g)
    • R(g);N_GUARD::S(L)
    • S(a);XR(A)::S(F)
    • S(a);::S(F)
    • S(e);S_CUTR(g)::S(L)
  • Actual
    • Q(I);P_SPINS(F)
    • Threat
      • QAR2(I)
    • Vars
      • B(f);CHECK,OGATE,XS(F)::P(E),XB(f)
      • R(g);N_GUARD::S(L),XR(g)
      • S(a);OGATE::P(C),XS(a)
      • S(a);N_PINS(F)::S(F)
      • S(e);N_PINS(F)::S(F)
      • S(e);S_CUTR(g)::S(L)
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