MESON Chess Problem Database

Problem Display
PID: 109493 (6r1/bn2RP2/5KP1/1N1pN2B/1Q1qk3/3r4/3B4/2n5 w - - 0 1)

Szoghy, Jozsef

Scacchi e Scienze Applicate, 1985-1987

6r1/bn2RP2/5KP1/1N1pN2B/1Q1qk3/3r4/3B4/2n5

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Sf3#
      • 2.Sxc4#
      • 2.Sc6#
      • 2.Sd7#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Rf3+
      • 2.Bxf3#
    • 1...Rxg6+
      • 2.Bxg6#
    • 1...Sa5
      • 2.Sd6#
    • 1...Sc5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
  • Tries
    • 1.Qxd4+?
      • 1...Rxd4
        • 2.Sc3#
        • 2.Bf3#
      • 1...Bxd4!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Bf3#
      • 1...Qf2+
        • 2.Sf3#
      • 1...Qxe5+
        • 2.Rxe5#
      • 1...Qb6+
        • 2.Sc6#
      • 1...Rxg6+
        • 2.Bxg6#
      • 1...Qe3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::S(C),XR(b)
    • R(b);CHECK,N_GUARD::B(E),XR(b)
    • R(h);CHECK,OGATE,XP(G)::B(E),XR(h)
    • S(g);N_GUARD::S(C)
    • S(g);N_GUARD::S(C),XS(g)
  • Tries
    • Try
      • Q(B);CHECK,N_SPINS(D),XQ(c)
      • Refutation
        • B(f);P_PINS(D),XQ(B)
  • Actual
    • Q(B);N_PINQ(c),P_PINR(b)
    • Threat
      • B(E)
    • Vars
      • Q(c);CHECK,N_PINS(D)::R(H)+S(D)
      • Q(c);CHECK,OGATE,P_SPINQ(c),XS(D)::R1(H),XQ(c)
      • R(h);CHECK,OGATE,XP(G)::B(E),XR(h)
      • Q(c);N_PINS(D)::R(H)+S(D),XR(b)
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