MESON Chess Problem Database

Problem Display
PID: 172118 (qB6/p7/2r1n3/1R2pp1r/2BkPp2/3p2p1/1n1Q4/bNR3Kb w - - 0 1)

Apro, Laszlo

Probleemblad, 1960

qB6/p7/2r1n3/1R2pp1r/2BkPp2/3p2p1/1n1Q4/bNR3Kb

#2

8 + 14

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Bxe5#
    • 1...Sd1
      • 2.Qxd3#
    • 1...Sa4
      • 2.Qxd3#
    • 1...fxe4
      • 2.Rd5#
  • Tries
    • 1.Qf2+?
      • 1...Kxe4
        • 2.Sd2#
        • 2.Sc3#
        • 2.Bd5#
        • 2.Re1#
        • 2.Rxe5#
      • 1...gxf2+!
  • Keys
    • 1.Re1!
      • threat
        • 2.Qc3#
      • 1...Kxc4
        • 2.Qb4#
      • 1...Rxc4
        • 2.Bxe5#
      • 1...Sxc4
        • 2.Rd5#
      • 1...Sd1
        • 2.Qxd3#
      • 1...Sa4
        • 2.Qxd3#

There are these versions: 171035

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(b);SBLOCK,XP(F)::B(H),XP(h)
    • S(c);N_GUARD::QAR1(D),XP(d)
    • P(i);SBLOCK,XP(F)::R1(G)
  • Tries
    • Try
      • Q(D);CHECK,N_PINP(d)
      • Refutation
        • P(e);CHECK,XQ(D)
  • Actual
    • R(B);
    • Threat
      • QAB1(D)
    • Vars
      • K(f);N_SPINP(d),OGATEB,P-FLIGHT,XB(E)::QAR1(D)
      • R(k);SBLOCK,XB(E)::B(H),XP(h)
      • S(c);SBLOCK,XB(E)::R1(G)
      • S(c);N_GUARD::QAR1(D),XP(d)
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