MESON Chess Problem Database

Problem Display
PID: 163096 (1b2KR2/3p4/5p2/3Pk2p/1Q3N2/2PPnn1B/5NP1/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

StrateGems, 2013

1b2KR2/3p4/5p2/3Pk2p/1Q3N2/2PPnn1B/5NP1/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qe4#
    • 1...Sxd5
      • 2.Sg6#
    • 1...d6
      • 2.Qe4#
  • Tries
    • 1.Kxd7?
      • threat
        • 2.Re8#
        • 2.Qe4#
        • 2.Qxb8#
      • 1...Sxd5
        • 2.Sg6#
        • 2.Qe4#
      • 1...Sg4
        • 2.Qe4#
      • 1...Sd4
        • 2.Qxd4#
        • 2.Qxb8#
      • 1...Bd6
        • 2.Qxd6#
        • 2.Qe4#
      • 1...Ba7
        • 2.Re8#
        • 2.Qd6#
        • 2.Qe4#
      • 1...Bc7
        • 2.Re8#
        • 2.Qe4#
      • 1...Sf5
        • 2.Qe4#
      • 1...Sd2
        • 2.Re8#
        • 2.Qd4#
        • 2.Qxb8#
      • 1...Sg5
        • 2.Qd4#
        • 2.Qxb8#
      • 1...f5
        • 2.Qxb8#
      • 1...Sc4!
  • Keys
    • 1.Rxf6!
      • threat
        • 2.Qe7#
      • 1...Kxf6
        • 2.Qe7#
      • 1...Sxd5
        • 2.Rf5#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sf5
        • 2.Rxf5#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sg5
        • 2.Qd4#
      • 1...d6
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(g);SBLOCK::QAR1(F)
    • S(a);SBLOCK,XP(H)::S(G)
    • P(f);SBLOCK::QAR1(F)
  • Tries
    • Try
      • K(I);S_FLIGHT,XP(f)
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::QAR1(F)
        • P(e);::QAB(F),XB(g)
      • Refutation
        • S(a);
  • Actual
    • R(J);XP(e)
    • Threat
      • QAR2(F)
    • Vars
      • K(c);S_FLIGHT,XR(J)::QAB1(F)
      • S(a);N_GUARD,XP(H)::R1(J)
      • B(g);N_GUARD::QAB1(F),XB(g)
      • S(a);N_GUARD::R1(J),XS(a)
      • S(b);N_GUARD::QAB1(F),XS(b)
      • S(b);N_GUARD::QAB1(F)
      • P(f);N_GUARD::R1(J)
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