MESON Chess Problem Database

Problem Display
PID: 7513 (B3R3/2r5/2P4r/2Q1N3/3Pk1N1/8/8/3K1R2 w - - 0 1)

McDowell, Michael

The Problemist, 1990

B3R3/2r5/2P4r/2Q1N3/3Pk1N1/8/8/3K1R2

#2

9 + 3

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Ke3
        • 2.Rf3#
        • 2.Qc3#
        • 2.d5#
      • 1...Rxf6!
    • 1.Sg6+?
      • 1...Kd3
        • 2.Sf2#
        • 2.Sf4#
        • 2.Rf3#
        • 2.Re3#
      • 1...Re7!
    • 1.Sd7+?
      • 1...Kd3
        • 2.Sf2#
        • 2.Rf3#
        • 2.Re3#
      • 1...Re6!
    • 1.Rf3?
      • threat
        • 2.Sf2#
      • 1...Rh2
        • 2.Sf6#
      • 1...Rh1+!
    • 1.Qc2+?
      • 1...Kxd4
        • 2.Qc4#
      • 1...Kd5!
  • Keys
    • 1.Qc4!
      • threat
        • 2.d5#
      • 1...Rhxc6
        • 2.Sd7#
      • 1...Rcxc6
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • R(b);XS(D)
    • Try
      • S(F);CHECK
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • S(F);CHECK
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • R(B);
      • Threat
        • S(D)
      • Vars
        • R(b);N_GUARD::S(D)
      • Refutation
        • R(b);CHECK
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAR(E)+P(C)
    • Vars
      • R(b);N_GUARD,P_SPINR(b),XP(G)::R(I)+S(F)
      • R(c);N_GUARD,P_SPINR(c),XP(G)::R(I)+S(F)
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