MESON Chess Problem Database

Problem Display
PID: 48421 (8/8/7b/1N2pp2/2P1k2n/r2p2RN/3PP3/3B2Kn w - - 0 1)

Onkoud, Abdelaziz

Mat Plus, 1994

8/8/7b/1N2pp2/2P1k2n/r2p2RN/3PP3/3B2Kn

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.exd3#
    • 1...Ra2
      • 2.exd3#
    • 1...Ra4
      • 2.exd3#
    • 1...Ra5
      • 2.exd3#
    • 1...Ra6
      • 2.exd3#
    • 1...Ra7
      • 2.exd3#
    • 1...Ra8
      • 2.exd3#
    • 1...Be3+
      • 2.Rxe3#
    • 1...Bg7
      • 2.Re3#
    • 1...Bf8
      • 2.Re3#
    • 1...Sf3+
      • 2.exf3#
  • Keys
    • 1.e3!
      • threat
        • 2.Sd6#
      • 1...Bxe3+
        • 2.Rxe3#
      • 1...Sf3+
        • 2.Bxf3#
      • 1...Ra6
        • 2.Sc3#
      • 1...Bf8
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD,P_PINB(A)::P(D),XP(c)
    • R(b);N_GUARD::P(D),XP(c)
    • B(h);CHECK,N_GUARD::R1(E),XB(h)
    • B(h);N_GUARD::R1(E)
    • S(e);CHECK,OGATE::P(D),XS(e)
  • Actual
    • P(D);
    • Threat
      • S(H)
    • Vars
      • B(h);CHECK,OGATE,XP(D)::R1(E),XB(h)
      • S(e);CHECK,N_GUARD::B(A),XS(e)
      • R(b);N_GUARD::S(H)
      • B(h);N_GUARD::S(F)
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