MESON Chess Problem Database

Problem Display
PID: 108130 (8/8/6K1/8/3NpBk1/3r2Pp/p3R3/Qb1B4 w - - 0 1)

Geofth, Claude

Bulletin Ouvrier des Echecs, 1936

8/8/6K1/8/3NpBk1/3r2Pp/p3R3/Qb1B4

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Rxd2#
    • 1...Ra3
      • 2.Re3#
    • 1...Rb3
      • 2.Re3#
    • 1...Rc3
      • 2.Re3#
    • 1...Re3
      • 2.Rxe3#
    • 1...Rxd4
      • 2.Rd2#
  • Tries
    • 1.Rxe4+?
      • 1...Rf3
        • 2.Bxf3#
      • 1...Rxd1!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qc8#
      • 1...Rxc3
        • 2.Re3#
      • 1...Rxg3
        • 2.Qxg3#
      • 1...Rxd4
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::B(B)+R(C),XR(c)
    • R(c);N_GUARD::B(B)+R(C)
    • R(c);N_GUARD,XS(E)::B(B)+R(C)
  • Tries
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • R(c);N_GUARD,P_PINR(C),P_SPINR(c)::B(B),XR(c)
      • Refutation
        • R(c);P_PINR(C),XB(B)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • R(c);N_GUARD,XQ(A)::B(B)+R(C)
      • R(c);OGATE,XP(D)::QAR1(A),XR(c)
      • R(c);N_GUARD,XS(E)::B(B)+R(C)
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