MESON Chess Problem Database

Problem Display
PID: 197773 (3K4/8/2B2N2/2rp2Q1/3kN3/2R5/4r3/8 w - - 0 1)

Benedek, Attila

Probleemblad, 1980

3K4/8/2B2N2/2rp2Q1/3kN3/2R5/4r3/8

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Qxd5#
    • 1...Rxc6
      • 2.Qxd5#
    • 1...dxe4
      • 2.Qxc5#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qg4#
        • 2.Qe5#
      • 1...Rxe4
        • 2.Qd2#
      • 1...dxe4
        • 2.Qxc5#
      • 1...Rxc3!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qe5#
      • 1...Rxe4
        • 2.Qd2#
      • 1...Rxc3
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::QAR1(C),XP(d)
    • R(c);N_GUARD,XB(D)::QAR1(C),XP(d)
    • P(d);OGATE,XS(B)::QAB1(C),XR(c)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(C)
      • Vars
        • R(a);N_GUARD,SBLOCK,XS(B)::QAR2(C)
        • P(d);OGATE,XS(B)::QAB1(C),XR(c)
      • Refutation
        • R(c);XR(A)
  • Actual
    • S(E);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(d),XS(B)::QAR1(C)
      • R(a);N_GUARD,SBLOCK,XS(B)::QAR2(C)
      • R(c);N_GUARD,XR(A)::QAR1(C),XP(d)
      • P(d);OGATE,XS(B)::QAB1(C),XR(c)
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Developed and maintained by Brian Stephenson.
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