MESON Chess Problem Database

Problem Display
PID: 138218 (3N3b/2pR4/1r4b1/PnkpN3/Q7/p1p3R1/7K/8 w - - 0 1)

Swane, Jan Arnold Willem

4th HM., Shakhmaty v SSSR, 1947

3N3b/2pR4/1r4b1/PnkpN3/Q7/p1p3R1/7K/8

#2

7 + 9

14752 Soviet Chess Compositions (1945-1947) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Sb7#
    • 1...Rc6
      • 2.Sb7#
    • 1...Rd6
      • 2.Sb7#
    • 1...Re6
      • 2.Sxe6#
      • 2.Sb7#
    • 1...Rf6
      • 2.Sb7#
    • 1...Rb7
      • 2.Se6#
      • 2.Sxb7#
    • 1...Rb8
      • 2.Se6#
    • 1...Bd3
      • 2.Sxd3#
    • 1...Bh5
      • 2.Sd3#
    • 1...Bf7
      • 2.Sd3#
    • 1...Be8
      • 2.Sd3#
    • 1...Sd4
      • 2.Rxc3#
    • 1...Sd6
      • 2.Se6#
    • 1...Sa7
      • 2.Rxc3#
    • 1...d4
      • 2.Qc4#
    • 1...c6
      • 2.Se6#
  • Keys
    • 1.Sec6!
      • threat
        • 2.Qb4#
      • 1...Rxc6
        • 2.Sb7#
      • 1...Sd4
        • 2.Rxc3#
      • 1...Sd6
        • 2.Se6#
      • 1...Sa7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • R(f);N_GUARD::S(G)
    • B(g);N_GUARD::S(E),XB(g)
    • B(g);N_GUARD::S(E)
    • S(c);N_GUARD::R(B),XP(b)
    • S(c);S_CUTR(f)::S(G)
    • P(e);N_GUARD::QAR1(C)
    • P(h);S_CUTR(f)::S(G)
  • Actual
    • S(E);
    • Threat
      • QAB1(C)
    • Vars
      • R(f);N_GUARD,SBLOCK,XS(E)::S(G)
      • S(c);N_GUARD,S_CUTB(i)::R(B),XP(b)
      • S(c);::S(G)
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