MESON Chess Problem Database

Problem Display
PID: 208154 (2bqrR2/5Q2/5N2/4k3/3R4/2P5/2K5/8 w - - 0 1)

Munoz, JB

Hartford Weekly Times, 1875

2bqrR2/5Q2/5N2/4k3/3R4/2P5/2K5/8

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qb6
      • 2.Qd5#
    • 1...Qxf6
      • 2.Qd5#
      • 2.Qxf6#
    • 1...Qc7
      • 2.Qd5#
    • 1...Qe7
      • 2.Qd5#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Re6
      • 2.Sg4#
      • 2.Qh5#
    • 1...Bg4
      • 2.Sxg4#
    • 1...Ba6
      • 2.Sg4#
    • 1...Bb7
      • 2.Sg4#
    • 1...Bd7
      • 2.Qd5#
  • Tries
    • 1.Re4+?
      • 1...Kf5
        • 2.Qh5#
      • 1...Kd6!
  • Keys
    • 1.Sd7+!
      • 1...Qxd7
        • 2.Qf6#
      • 1...Bxd7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::QAR1(E)
    • Q(c);N_GUARD,P_PINP(B)::QAR1(E)
    • Q(c);N_GUARD::QAR1(E),XQ(c)
    • B(b);N_GUARD::S(D),XB(b)
    • B(b);N_GUARD::S(D)
    • B(b);S_CUTQ(c)::QAR1(E)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);CHECK
    • Vars
      • Q(c);XS(D)::QAB1(E)
      • B(b);XS(D)::QAR1(E)
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