MESON Chess Problem Database

Problem Display
PID: 107168 (4b3/2r2P1B/2Q5/3p4/1Pr1q3/P6R/1Pk5/R2NB1K1 w - - 0 1)

Szoghy, Jozsef

Freie Presse, 1982

4b3/2r2P1B/2Q5/3p4/1Pr1q3/P6R/1Pk5/R2NB1K1

#2

11 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Bxf5#
    • 1...Qg6+
      • 2.Bxg6#
    • 1...Rc3
      • 2.Rxc3#
    • 1...Rd7
      • 2.Qa4#
    • 1...Bxf7
      • 2.Qa4#
  • Tries
    • 1.Rh2+?
      • 1...Kd3
        • 2.Rd2#
      • 1...Kb3!
    • 1.Qxc4+?
      • 1...dxc4
        • 2.Bxe4#
        • 2.Rc3#
      • 1...Rxc4!
  • Keys
    • 1.Qxd5!
      • threat
        • 2.Qd2#
      • 1...Qg6+
        • 2.Qg2#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Rc3
        • 2.Rh2#
      • 1...Rd4
        • 2.Qb3#
      • 1...Rd7
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(c);OGATEB::B(K),XQ(c)
    • Q(c);CHECK,OGATEB::B(K),XQ(c)
    • R(b);N_GUARD::R1(G),XR(b)
    • R(e);S_CUTB(f)::QAB(I)
    • B(f);N_GUARD,XP(J)::QAB(I)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(a);N_SPINR(b),S_FLIGHT::R1(G)
      • Refutation
        • K(a);N_SPINQ(c),N_SPINR(b),S_FLIGHT
    • Try
      • Q(I);CHECK,XR(b)
      • Refutation
        • R(e);XQ(I)
  • Actual
    • Q(I);N_PINR(b),XP(d)
    • Threat
      • QAR1(I)
    • Vars
      • Q(c);CHECK,OGATE::QAR(I)
      • Q(c);N_GUARD::QAB1(I),XQ(c)
      • R(b);::R(G)
      • R(b);OGATE::QAB1(I)
      • R(e);N_GUARD::QAR2(I),XR(b)
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