MESON Chess Problem Database

Problem Display
PID: 102738 (8/2pN4/4P1K1/1P5R/Ppk1n1Q1/rn2PBp1/1rb1Ppq1/2RN4 w - - 0 1)

Servais, Albert

Le Courrier des Echecs, 1956

8/2pN4/4P1K1/1P5R/Ppk1n1Q1/rn2PBp1/1rb1Ppq1/2RN4

#2

12 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Rxc2#
    • 1...c5
      • 2.Sb6#
    • 1...c6
      • 2.Sb6#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd5#
      • 1...Sed2
        • 2.Qd3#
      • 1...Sc3
        • 2.Sxb2#
      • 1...Sec5
        • 2.Se5#
      • 1...Sg5
        • 2.Qd3#
      • 1...Sd6
        • 2.Qd3#
      • 1...Sf6
        • 2.Qd3#
      • 1...c6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD::R(A),XB(b)
    • P(k);N_GUARD::S(L)
  • Actual
    • Q(G);N_PINS(j)
    • Threat
      • QAB1(G)
    • Vars
      • S(j);OGATE,P_PINQ(G)::QAB1(G)
      • S(j);N_SPINB(b),P_PINQ(G),SBLOCK::S(B),XR(a)
      • S(j);P_PINQ(G),SBLOCK::S(L)
      • P(k);N_GUARD::S(L)
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