MESON Chess Problem Database

Problem Display
PID: 102395 (Q1B3r1/R2b4/r4n1N/2PPBp2/3NkP2/2pR2pK/1pP5/8 w - - 0 1)

Dragoescu, Radu

Europe Echecs, 1988

Q1B3r1/R2b4/r4n1N/2PPBp2/3NkP2/2pR2pK/1pP5/8

#2

12 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Bxf5#
    • 1...Bb5
      • 2.Bxf5#
    • 1...Be8
      • 2.Bxf5#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sxc3#
      • 1...Bxb5
        • 2.Bxf5#
      • 1...Ra3
        • 2.Sd6#
      • 1...b1S!
  • Keys
    • 1.Sdxf5!
      • threat
        • 2.Re3#
      • 1...Bxf5+
        • 2.Bxf5#
      • 1...Rc6
        • 2.Ra4#
      • 1...Bc6
        • 2.Sd6#
      • 1...Sg4
        • 2.Sxg3#

This is a version of 133184

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(h);OGATE::B(L),XP(e)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D),XP(b)
      • Vars
        • B(h);OGATE,XS(D)::B(L),XP(e)
        • R(f);N_GUARD::S(D)
      • Refutation
        • P(a);
  • Actual
    • S(D);P_SPINS(D),XP(e)
    • Threat
      • R1(B)
    • Vars
      • B(h);CHECK,OGATE,XS(D)::B(L),XB(h)
      • R(f);OGATE::R(J)
      • B(h);N_PINS(D)::S(D)
      • S(g);N_PINS(D)::S(D),XP(c)
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