MESON Chess Problem Database

Problem Display
PID: 96259 (8/p6N/1nP5/B1Qpk1N1/1Rb1PnK1/3rpP2/3P4/8 w - - 0 1)

Armeni, Alberto

Problem Observer, 1996

8/p6N/1nP5/B1Qpk1N1/1Rb1PnK1/3rpP2/3P4/8

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.d4#
    • 1...Rb3
      • 2.d4#
    • 1...Rc3
      • 2.d4#
    • 1...Se6
      • 2.Sf7#
    • 1...Sa4
      • 2.Bc7#
    • 1...Sd7
      • 2.Bc7#
  • Tries
    • 1.Bxb6?
      • threat
        • 2.Bc7#
      • 1...Se6
        • 2.Sf7#
      • 1...axb6!
  • Keys
    • 1.exd5!
      • threat
        • 2.Sf7#
      • 1...Rxd5
        • 2.d4#
      • 1...Bxd5
        • 2.Re4#
      • 1...Sfxd5
        • 2.f4#
      • 1...Sbxd5
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(a);OGATE::P(A)
    • S(d);SBLOCK::S(H)
    • S(g);OGATE::B(F)
  • Tries
    • Try
      • B(F);XS(g)
      • Threat
        • B(F)
      • Vars
        • S(d);SBLOCK::S(H)
      • Refutation
        • P(h);XB(F)
  • Actual
    • P(D);XP(e)
    • Threat
      • S(H)
    • Vars
      • R(a);OGATE,P_SPINR(a),XP(D)::P(A)
      • B(c);OGATE,P_SPINB(c),XP(D)::R1(C)
      • S(d);OGATE,P_SPINS(d),XP(D)::P(B)
      • S(g);OGATE,P_SPINS(g),XP(D)::B(F)
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