MESON Chess Problem Database

Problem Display
PID: 154563 (2rB4/r6Q/nRpk1b2/1Rn1N3/p1B1pP2/KpN5/8/1b6 w - - 0 1)

Thomsen, Svend Orvar

2nd HM., DSK 11. TT, 1936-1937

2rB4/r6Q/nRpk1b2/1Rn1N3/p1B1pP2/KpN5/8/1b6

#2

9 + 11

4035 Aarsskrift for DSK 1936

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxc6#
    • 1...Rb8
      • 2.Rxc6#
    • 1...Rxd8
      • 2.Rxc6#
    • 1...Sd3
      • 2.Sxe4#
    • 1...Se6
      • 2.Rd5#
    • 1...Sb7
      • 2.Qd7#
    • 1...Sd7
      • 2.Sf7#
    • 1...Sc7
      • 2.Rxc6#
  • Tries
    • 1.Qd7+?
      • 1...Sxd7
        • 2.Sf7#
      • 1...Rxd7!
  • Keys
    • 1.Ra5!
      • threat
        • 2.Sb5#
      • 1...Sd3
        • 2.Sxe4#
      • 1...Se6
        • 2.Rd5#
      • 1...Sb7
        • 2.Qd7#
      • 1...Sd7
        • 2.Sf7#
      • 1...Sc7
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(k);N_GUARD::R1(G),XP(g)
    • R(k);N_GUARD,XB(I)::R1(G),XP(g)
    • S(e);N_GUARD,S_CUTB(a)::S(B),XP(d)
    • S(e);OGATE,SBLOCK::R1(E)
    • S(e);N_GUARD,S_CUTR(j)::QAR1(H)
    • S(e);SBLOCK,S_CUTR(j)::S(F)
    • S(f);S_CUTR(k)::R1(G),XP(g)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • S(e);SBLOCK,XQ(H)::S(F)
      • Refutation
        • R(j);XQ(H)
  • Actual
    • R(E);
    • Threat
      • S(B)
    • Vars
      • S(e);N_GUARD,S_CUTB(a)::S(B),XP(d)
      • S(e);OGATE,SBLOCK::R1(E)
      • S(e);N_GUARD,S_CUTR(j)::QAR1(H)
      • S(e);SBLOCK,S_CUTR(j)::S(F)
      • S(f);S_CUTR(k)::R1(G),XP(g)
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