MESON Chess Problem Database

Problem Display
PID: 104383 (7B/Rb5p/2N3pK/8/r1n2k1N/5P1P/q1Q2P2/4rn2 w - - 0 1)

Michel, Francois

Themes-64, 1959

7B/Rb5p/2N3pK/8/r1n2k1N/5P1P/q1Q2P2/4rn2

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qe4#
    • 1...Rb1
      • 2.Qe4#
    • 1...Rc1
      • 2.Qe4#
    • 1...Rd1
      • 2.Qe4#
    • 1...Re4
      • 2.Qxe4#
    • 1...Ba6
      • 2.Rf7#
    • 1...Bxc6
      • 2.Rf7#
    • 1...Ba8
      • 2.Rf7#
    • 1...Sfe3
      • 2.Qe4#
    • 1...Sce3
      • 2.Be5#
    • 1...g5
      • 2.Qf5#
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sg2#
      • 1...Bxf3
        • 2.Rf7#
      • 1...Sfe3
        • 2.Se6#
      • 1...Sce3
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::QAR1(A)
    • R(a);N_GUARD::QAR1(A),XR(a)
    • B(h);OGATE::R(H)
    • B(h);OGATE,XS(F)::R(H)
    • S(b);S_CUTR(a)::QAR1(A)
    • S(e);N_GUARD,S_CUTR(a)::B(I)
    • P(g);N_GUARD::QAR1(A)
  • Actual
    • S(F);
    • Threat
      • S(E)
    • Vars
      • B(h);OGATE,XP(C)::R(H)
      • S(b);S_CUTR(a)::S(F)
      • S(e);OGATE::QAB(A)
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