MESON Chess Problem Database

Problem Display
PID: 207070 (6K1/B2B1R2/1nQpN3/4k2N/R1b3pr/2p1p3/8/8 w - - 0 1)

di Scala, Pascal

Phenix, 1996

6K1/B2B1R2/1nQpN3/4k2N/R1b3pr/2p1p3/8/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Re4#
      • 2.Qe4#
    • 1...Ba2
      • 2.Re4#
      • 2.Qe4#
    • 1...Be2
      • 2.Re4#
      • 2.Qe4#
    • 1...Bb3
      • 2.Re4#
      • 2.Qe4#
    • 1...Bb5
      • 2.Re4#
      • 2.Qe4#
    • 1...Bd5
      • 2.Qxc3#
    • 1...Ba6
      • 2.Re4#
      • 2.Qe4#
    • 1...Bxe6
      • 2.Re4#
      • 2.Qe4#
    • 1...Sxa4
      • 2.Bd4#
    • 1...Sa8
      • 2.Bd4#
    • 1...Sc8
      • 2.Bd4#
  • Tries
    • 1.Qxd6+?
      • 1...Ke4
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Rf4#
        • 2.Qd4#
      • 1...Kxd6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe4#
      • 1...Bxf7+
        • 2.Sxf7#
      • 1...Kd4
        • 2.Qxd6#
      • 1...Bd3
        • 2.Re7#
      • 1...Bd5
        • 2.Qxc3#
      • 1...Sd5
        • 2.Rf5#
      • 1...g3
        • 2.Sf3#
      • 1...d5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • B(c);OGATE,SBLOCK::QAB(C),XP(a)
    • S(g);OGATE,XR(A)::B(E)
    • S(g);OGATE::B(E)
  • Tries
    • Try
      • Q(C);CHECK,XP(h)
      • Refutation
        • K(f);S_FLIGHT,XQ(C)
  • Actual
    • S(D);P_SPINR(G)
    • Threat
      • QAR1(C)
    • Vars
      • B(c);CHECK,XR(G)::S(D),XB(c)
      • K(f);P_SPINB(c),P_SPINS(g),S_FLIGHT::QAR2(C),XP(h)
      • B(c);N_PINR(G)::R(G)
      • B(c);OGATE,SBLOCK::QAB(C),XP(a)
      • S(g);N_PINR(G)::R1(G)
      • P(d);N_GUARD::S(D)
      • P(h);N_PINR(G),OGATE,SBLOCK::QAB1(C)
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Developed and maintained by Brian Stephenson.
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