MESON Chess Problem Database

Problem Display
PID: 162264 (6Q1/8/8/2R1P3/bp1BP2r/3k1p1p/1P2NP2/4K3 w - - 0 1)

Guida, Marco

The Problemist, 2016

6Q1/8/8/2R1P3/bp1BP2r/3k1p1p/1P2NP2/4K3

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qg6#
    • 1...Rxe4
      • 2.Qc4#
  • Tries
    • 1.Sc1+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kxe4!
    • 1.Be3?
      • threat
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qg6#
      • 1...Rxe4
        • 2.Sc1#
      • 1...Bb5
        • 2.Qd5#
      • 1...Bc6
        • 2.Qc4#
      • 1...Bb3!
    • 1.Qg5?
      • threat
        • 2.Qe3#
      • 1...Kxe4
        • 2.Qg6#
      • 1...Rxe4
        • 2.Qd2#
      • 1...Rf4!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Sc1#
        • 2.Be3#
      • 1...Rxe4
        • 2.Qc4#
      • 1...fxe2
        • 2.Be3#
      • 1...Bb3
        • 2.Sc1#
      • 1...Bc6
        • 2.Sc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(a);OGATEB,S_FLIGHT,XP(F)::QAB(I)
    • R(f);P_PINS(C),SBLOCK,XP(F)::QAB1(I)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(F)::QAB(I)
        • R(f);SBLOCK,XP(F)::S(C)
        • B(d);::QAR2(I)
        • B(d);::QAB1(I)
      • Refutation
        • B(d);
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(F)::QAB(I)
        • R(f);P_PINS(C),SBLOCK,XP(F)::QAR1(I)
      • Refutation
        • R(f);
  • Actual
    • Q(I);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);P_PINS(C),SBLOCK,XP(F)::QAB1(I)
      • P(b);XS(C)::QAR(I)+B(E)
      • B(d);::S(C)
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