MESON Chess Problem Database

Problem Display
PID: 30548 (2n5/5p2/1Q1n1N1K/2pPkP1R/q3P2B/3R4/4N2p/8 w - - 0 1)

Shire, David J

Scacco!, 1991

2n5/5p2/1Q1n1N1K/2pPkP1R/q3P2B/3R4/4N2p/8

#2

10 + 7

3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qb2#
    • 1...Qc6
      • 2.Qb2#
    • 1...Qd7
      • 2.Qb2#
    • 1...Qe8
      • 2.Qb2#
    • 1...Qxe4
      • 2.Sd7#
    • 1...Qa6
      • 2.Qb2#
    • 1...Qa7
      • 2.Qb2#
    • 1...Qa8
      • 2.Qb2#
    • 1...Sc4
      • 2.Bg3#
    • 1...Sxe4
      • 2.Sg4#
    • 1...Sb5
      • 2.Bg3#
    • 1...Sxf5+
      • 2.Rxf5#
    • 1...Sb7
      • 2.Bg3#
    • 1...Se8
      • 2.Bg3#
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Qd8?
      • threat
        • 2.Bg3#
      • 1...Sxf5+
        • 2.Rxf5#
      • 1...Qxe4
        • 2.Sd7#
      • 1...Sxe4
        • 2.Sg4#
      • 1...Se7
        • 2.Qxe7#
      • 1...h1S!
  • Keys
    • 1.Re3!
      • threat
        • 2.Sg4#
      • 1...Sxf5+
        • 2.Rxf5#
      • 1...Qxe4
        • 2.Qb2#
      • 1...Sxe4
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • Q(b);N_GUARD::QAB(H)
    • Q(b);N_GUARD,SBLOCK,XP(C)::S(I)
    • S(e);::B(D)
    • S(e);SBLOCK,XP(C)::S(I)
    • S(e);CHECK,OGATE,P_SPINS(e),XP(F)::R1(G),XS(e)
    • P(c);OGATE::QAB1(H)
  • Tries
    • Try
      • Q(H);
      • Threat
        • B(D)
      • Vars
        • S(e);CHECK,OGATE,P_SPINS(e),XP(F)::R1(G),XS(e)
        • Q(b);N_GUARD,SBLOCK,XP(C)::S(I)
        • S(e);SBLOCK,XP(C)::S(I)
        • S(g);N_GUARD::QAR2(H),XS(g)
      • Refutation
        • P(a);
  • Actual
    • R(B);
    • Threat
      • S(I)
    • Vars
      • S(e);CHECK,OGATE,P_SPINS(e),XP(F)::R1(G),XS(e)
      • Q(b);N_GUARD,P_SPINQ(b),XP(C)::QAB(H)
      • S(e);P_SPINS(e),XP(C)::B(D)
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Developed and maintained by Brian Stephenson.
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