MESON Chess Problem Database

Problem Display
PID: 169119 (1r6/2R5/3p2N1/N2k1P2/P3p3/B3P3/P2Pr2b/5Q1K w - - 0 1)

Labai, Zoltan

2nd HM., SuperProblem 117. TT, 2014

1r6/2R5/3p2N1/N2k1P2/P3p3/B3P3/P2Pr2b/5Q1K

#2

11 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd2
      • 2.Qc4#
    • 1...Rf2
      • 2.Qc4#
    • 1...Rg2
      • 2.Qc4#
    • 1...Rxe3
      • 2.Qc4#
    • 1...Be5
      • 2.Se7#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Se7#
      • 1...Re8
        • 2.Sb6#
      • 1...Rxe3!
    • 1.d4?
      • threat
        • 2.Se7#
      • 1...Rxe3
        • 2.Qc4#
      • 1...exd4 ep
        • 2.Qf3#
      • 1...Re8!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sce7#
      • 1...Kc4
        • 2.Sb4#
      • 1...Rxe3
        • 2.Sge7#
      • 1...Re8
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE,XP(D)::QAB1(A)
    • R(a);OGATE::QAB1(A)
    • R(a);OGATE,XP(F)::QAB1(A)
    • B(b);SBLOCK::S(J)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(J)
      • Vars
        • R(f);N_GUARD::S(H)
      • Refutation
        • R(a);XP(F)
    • Try
      • P(D);
      • Threat
        • S(J)
      • Vars
        • R(a);OGATE,XP(F)::QAB1(A)
        • P(c);EP,OGATEB,XP(D)::QAB(A)
      • Refutation
        • R(f);
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(d);P_SPINR(a),S_FLIGHT::R(K)+S(H)
      • R(a);XP(F)::S(J)
      • R(f);N_GUARD::S(H)
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