MESON Chess Problem Database

Problem Display
PID: 62154 (2r3b1/8/2r2p2/3N3Q/3nkN2/nRp3P1/K4P2/8 w - - 0 1)

Fenner, A Jack

Chess, 1943

2r3b1/8/2r2p2/3N3Q/3nkN2/nRp3P1/K4P2/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxf6#
    • 1...Rc5
      • 2.Sxf6#
    • 1...R6c7
      • 2.Sxf6#
    • 1...Bxd5
      • 2.Qxd5#
    • 1...Be6
      • 2.Sxf6#
    • 1...Sc4
      • 2.Sxc3#
    • 1...c2
      • 2.Re3#
  • Keys
    • 1.Rb4!
      • threat
        • 2.f3#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...f5
        • 2.Qe2#
      • 1...Rc4
        • 2.Sxf6#
      • 1...Sc4
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(e);N_GUARD::S(F),XP(f)
    • B(h);OGATE,P_PINR(C),XS(F)::QAB1(G),XB(h)
    • B(h);S_CUTR(e)::S(F),XP(f)
    • S(a);S_CUTR(e)::S(F),XP(b)
    • P(b);OGATE::R1(C)
  • Actual
    • R(C);P_PINS(c),P_SPINS(F)
    • Threat
      • P(B)
    • Vars
      • B(h);CHECK,OGATE,XS(F)::QAB1(G),XB(h)
      • P(f);SBLOCK::QAR2(G)
      • R(e);N_PINS(F),N_SPINS(c)::S(F),XP(f)
      • S(a);N_PINS(F),N_SPINS(c)::S(F),XP(b)
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