MESON Chess Problem Database

Problem Display
PID: 101172 (K7/4p3/4p3/3pQ3/2pp1b2/k5BR/n1B5/1RNn1b2 w - - 0 1)

Paluzie y Lucena, Jozefo

Good Companions (December), 1916

K7/4p3/4p3/3pQ3/2pp1b2/k5BR/n1B5/1RNn1b2

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6+?
      • 1...Bxd6
        • 2.Bxd6#
      • 1...Sb4
        • 2.Qxb4#
      • 1...exd6!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qa7#
      • 1...Bxb8
        • 2.Bd6#
      • 1...Bd2
        • 2.Bd6#
      • 1...Bc7
        • 2.Bd6#
      • 1...Sb2
        • 2.Qxb2#
      • 1...Sdc3
        • 2.Qb2#
      • 1...Sac3
        • 2.Qb4#
      • 1...Sb4
        • 2.Qxb4#
      • 1...c3
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • B(g);OGATE,XQ(F)::R(E)+B(D),DCHECK,XB(g)
        • S(c);N_GUARD,P_SPINS(c)::QAB1(F),XS(c)
      • Refutation
        • P(j);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAR(F)
    • Vars
      • B(g);OGATE,XQ(F)::R(E)+B(D),DCHECK
      • B(g);OGATE::R(E)+B(D),DCHECK
      • S(a);N_GUARD::QAB1(F),XS(a)
      • S(a);N_GUARD::QAB1(F)
      • S(c);N_GUARD::QAB1(F)
      • S(c);N_GUARD::QAB1(F),XS(c)
      • P(e);N_GUARD::QAR1(F)
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