MESON Chess Problem Database

Problem Display
PID: 242280 (N1r4n/n7/4p3/2k5/3RR3/4p1r1/2K1B2B/3Q4 w - - 0 1)

Kisis, Imants J

Hlas l'udu, 1991

N1r4n/n7/4p3/2k5/3RR3/4p1r1/2K1B2B/3Q4

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Re5#
    • 1...Sb5
      • 2.Rc4#
  • Tries
    • 1.Rd6?
      • threat
        • 2.Qd4#
      • 1...Sb5
        • 2.Rc4#
      • 1...e5
        • 2.Qd5#
      • 1...Sc6!
    • 1.Rd7?
      • threat
        • 2.Qd6#
      • 1...Kc6
        • 2.Qd6#
      • 1...Rc6
        • 2.Qd4#
      • 1...Sb5
        • 2.Rc4#
      • 1...Sf7!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Rec4#
      • 1...Kc6
        • 2.Rec4#
      • 1...Rg4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(f);SBLOCK::R(F)
    • S(e);SBLOCK::R1(E)
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB1(A)
      • Vars
        • S(e);SBLOCK::R1(F)
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • S(e);
    • Try
      • R(E);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • R(f);SBLOCK::QAB1(A)
        • S(e);SBLOCK::R1(F)
      • Refutation
        • S(g);
  • Actual
    • R(E);
    • Threat
      • R1(F)
    • Vars
      • K(c);P-FLIGHT::R(F)
      • R(b);::QAB1(A)
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