MESON Chess Problem Database

Problem Display
PID: 41224 (K3N1B1/p2ppn2/2p1rPN1/2pkp3/r2q1PQ1/1P1n1P2/8/1bRR2B1 w - - 0 1)

Szoghy, Jozsef

British Chess Magazine, 1934

K3N1B1/p2ppn2/2p1rPN1/2pkp3/r2q1PQ1/1P1n1P2/8/1bRR2B1

#2

12 + 13

3770 BCSC Postal 2002-2003
1101 BCSC Final 2006-2007
56 The Problemist 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Rxc5#
    • 1...Qb2
      • 2.Rxc5#
    • 1...Qe4
      • 2.Rxc5#
    • 1...Qxf4
      • 2.Rxc5#
    • 1...Rd6
      • 2.Sxe7#
      • 2.Sc7#
    • 1...Rxf6
      • 2.Sxe7#
    • 1...Sg5
      • 2.Sxe7#
    • 1...Sd6
      • 2.Sxe7#
      • 2.Sc7#
    • 1...Sh6
      • 2.Sxe7#
    • 1...Sd8
      • 2.Sxe7#
    • 1...Sh8
      • 2.Sxe7#
    • 1...d6
      • 2.Sc7#
  • Tries
    • 1.Qxe6+?
      • 1...dxe6
        • 2.Sxe7#
      • 1...Kxe6!
  • Keys
    • 1.fxe5!
      • threat
        • 2.Sc7#
      • 1...Qxe5
        • 2.Rxc5#
      • 1...Rxe5
        • 2.Qxd7#
      • 1...Sdxe5
        • 2.Sf4#
      • 1...Sfxe5
        • 2.Sxe7#
      • 1...c4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 10
  • Sets
    • Q(d);N_GUARD,P_SPINS(b)::R1(A),XP(e)
    • Q(d);N_GUARD,P_SPINS(b),XP(F)::R1(A),XP(e)
    • R(i);N_GUARD,P_SPINS(m),XP(H)::S(I),XP(l)
    • S(m);P_SPINR(i)::S(I),XP(l)
    • P(k);SBLOCK::S(K)
  • Tries
    • Try
      • Q(G);CHECK,XR(i)
      • Vars
        • P(k);SBLOCK,XQ(G)::S(I),XP(l)
      • Refutation
        • K(f);P_SPINS(m),S_FLIGHT,XQ(G)
  • Actual
    • P(F);XP(g)
    • Threat
      • S(K)
    • Vars
      • Q(d);N_GUARD,P_SPINS(b),XP(F)::R1(A),XP(e)
      • R(i);OGATE,P_SPINS(m),XP(F)::QAR2(G),XP(k)
      • S(b);N_GUARD,P_SPINQ(d),SBLOCK,XP(F)::S(I)
      • S(m);P_SPINR(i),SBLOCK,XP(F)::S(I),XP(l)
      • P(e);N_GUARD,S_CUTR(c)::QAR1(G),XQ(d)
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