MESON Chess Problem Database

Problem Display
PID: 7466 (K4B2/1n6/RP1p3r/n1k5/1pr1B3/NQ2P3/N7/8 w - - 0 1)

Lorinc, Juraj

3rd HM., Nedelna Pravda, 1990-1991

K4B2/1n6/RP1p3r/n1k5/1pr1B3/NQ2P3/N7/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qd5#
      • 2.Qxb4#
    • 1...Rc2
      • 2.Qd5#
      • 2.Qxb4#
    • 1...Rc3
      • 2.Qd5#
      • 2.Qxb4#
    • 1...Sc6
      • 2.Qxc4#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qd5#
      • 1...Rd4
        • 2.Qxd4#
        • 2.exd4#
      • 1...Rh5
        • 2.Qxh5#
      • 1...Rxe4!
    • 1.Qd3?
      • threat
        • 2.Qd5#
      • 1...Rxe4
        • 2.Qb5#
      • 1...Rd4
        • 2.Qb5#
        • 2.Qxd4#
        • 2.exd4#
      • 1...Rh5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sa4#
      • 1...Rxc3
        • 2.Qd5#
      • 1...Rxe4
        • 2.Qd5#
      • 1...bxa3
        • 2.Qb5#
      • 1...bxc3
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::QAR1(C),XR(b)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • R(f);N_GUARD::QAR(C),XR(f)
      • Refutation
        • R(b);XB(E)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • R(b);OGATE,XB(E)::QAR1(C)
      • Refutation
        • R(f);
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • R(b);OGATE,XS(A)::QAR1(C)
      • R(b);OGATE,XB(E)::QAR1(C)
      • P(a);OGATE,XS(B)::QAR1(C)
      • P(a);OGATE,XS(A)::QAR1(C)
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