MESON Chess Problem Database

Problem Display
PID: 186027 (Q6b/2p1n1Bb/8/4r2p/R7/4k2r/3N1p1p/K2R1B2 w - - 0 1)

Anonymous

1st Prize, Tijdschrift vd NSB, 1918

Q6b/2p1n1Bb/8/4r2p/R7/4k2r/3N1p1p/K2R1B2

#2

7 + 10

15 British Chess Magazine 1918

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Qxf3#
    • 1...Rh4
      • 2.Qf3#
    • 1...Rf5
      • 2.Re4#
      • 2.Qe4#
    • 1...Bf5
      • 2.Bh6#
  • Tries
    • 1.Qa7+?
      • 1...Rc5
        • 2.Qxc5#
      • 1...c5!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qf4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Rh4
        • 2.Qf3#
      • 1...Re4
        • 2.Ra3#
      • 1...Rf5
        • 2.Re4#
      • 1...Be4
        • 2.Sc4#
      • 1...Bf5
        • 2.Bh6#
      • 1...Sd5
        • 2.Qc5#
      • 1...Sf5
        • 2.Qa3#
      • 1...Sg6
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD::QAR1(G),XR(d)
    • R(d);N_GUARD::QAR1(G)
    • B(i);S_CUTR(e)::B(F)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • R(e);N_GUARD,P_PINB(F),P_SPINR(e)::QAB(G),XR(e)
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • R(d);N_GUARD::QAR1(G),XR(d)
      • R(d);N_GUARD::QAR1(G)
      • R(e);P_PINB(F),S_CUTB(i)::R(E)
      • R(e);N_GUARD,P_PINB(F),S_CUTB(i)::R1(E)
      • B(i);SBLOCK::S(D)
      • B(i);S_CUTR(e)::B(F)
      • S(h);OGATE::QAB(G)
      • S(h);OGATE::QAR(G)
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