MESON Chess Problem Database

Problem Display
PID: 181297 (7B/3K2n1/3N4/3k2N1/2Rn1R1r/1p6/1Q6/3r4 w - - 0 1)

Handloser, Ralf Chris

Problemskak, 2018

7B/3K2n1/3N4/3k2N1/2Rn1R1r/1p6/1Q6/3r4

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Rf5#
    • 1...Ra1
      • 2.Qxd4#
    • 1...Rb1
      • 2.Qxd4#
    • 1...Rc1
      • 2.Qxd4#
    • 1...Re1
      • 2.Qxd4#
    • 1...Rf1
      • 2.Qxd4#
    • 1...Rg1
      • 2.Qxd4#
    • 1...Rdh1
      • 2.Qxd4#
  • Tries
    • 1.Rcxd4+?
      • 1...Ke5
        • 2.Sf3#
        • 2.Sgf7#
        • 2.Sc4#
        • 2.Sdf7#
        • 2.Bxg7#
        • 2.Rf5#
        • 2.Qe2#
      • 1...Rxd4
        • 2.Qxd4#
      • 1...Kc5!
    • 1.Qg2+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Sf3!
  • Keys
    • 1.Sge4!
      • threat
        • 2.Rc5#
      • 1...Ke5
        • 2.Rf5#
      • 1...Rc1
        • 2.Qxd4#
      • 1...Sde6
        • 2.Sf6#
      • 1...Sge6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • K(e);P-FLIGHT,P_SPINS(c)::R1(C)
    • R(a);N_GUARD::QAR1(A),XS(c)
  • Tries
    • Try
      • R(B);CHECK,XS(c)
      • Vars
        • R(a);OGATE,XR(B)::QAR1(A),XR(a)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINS(f)::QAR1(A)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • S(D);
    • Threat
      • R1(B)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(c)::R1(C)
      • R(a);N_GUARD::QAR1(A),XS(c)
      • S(c);::S(D)
      • S(f);::S(D)
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