MESON Chess Problem Database

Problem Display
PID: 121641 (1b2N3/3R4/2P1k3/5r2/1p2P3/1K1N4/8/4Q3 w - - 0 1)

Nemeth, Jozsef

Szekszard TST TT, 1963

1b2N3/3R4/2P1k3/5r2/1p2P3/1K1N4/8/4Q3

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sf4#
    • 1...Rf6
      • 2.Sg7#
    • 1...Be5
      • 2.Sc5#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Sg7#
      • 1...Re5
        • 2.Sf4#
      • 1...Rg5
        • 2.Qf6#
      • 1...Rf7
        • 2.Sc5#
        • 2.Qc4#
      • 1...Be5
        • 2.Sc5#
        • 2.Qc4#
      • 1...bxc3!
    • 1.Qxb4?
      • threat
        • 2.Re7#
        • 2.Qe7#
      • 1...Rb5
        • 2.Re7#
      • 1...Rf7
        • 2.Qc4#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Rc5!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sg7#
      • 1...Re5
        • 2.Sf4#
      • 1...Rg5
        • 2.Qf6#
      • 1...Rf7
        • 2.Sc5#
      • 1...Be5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD,SBLOCK,S_CUTB(d)::S(C)
    • R(b);SBLOCK::S(G)
    • B(d);SBLOCK,S_CUTR(b)::S(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(G)
      • Vars
        • R(b);N_GUARD,S_CUTB(d)::S(C)
        • R(b);N_GUARD::QAR1(A)
      • Refutation
        • P(a);XQ(A)
    • Try
      • Q(A);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);P_PINQ(A)::R1(F)
        • R(b);N_GUARD::QAB(A)
        • B(d);N_GUARD::QAR1(A),XB(d)
      • Refutation
        • R(b);
  • Actual
    • Q(A);
    • Threat
      • S(G)
    • Vars
      • R(b);N_GUARD,S_CUTB(d)::S(C)
      • R(b);N_GUARD::QAR1(A)
      • R(b);N_GUARD::S(C)
      • B(d);S_CUTR(b)::S(C)
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