MESON Chess Problem Database

Problem Display
PID: 149214 (b1Q5/1Bp5/2p1NN2/1nP3p1/3B2p1/1P1k1n2/2R2PR1/3K4 w - - 0 1)

Petite, Efren

Best Problems, 2010

b1Q5/1Bp5/2p1NN2/1nP3p1/3B2p1/1P1k1n2/2R2PR1/3K4

#2

11 + 8

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Rd2#
    • 1...Sg1
      • 2.Rd2#
    • 1...Sd2
      • 2.Rxd2#
    • 1...Sh2
      • 2.Rd2#
    • 1...Sh4
      • 2.Rd2#
    • 1...Se5
      • 2.Rd2#
    • 1...Sa3
      • 2.Rc3#
    • 1...Sc3+
      • 2.Rxc3#
    • 1...Sd6
      • 2.Rc3#
    • 1...Sa7
      • 2.Rc3#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Rd2#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sxd4!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qh7#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sfxd4
        • 2.Rg3#
      • 1...Sbxd4
        • 2.Ba6#
      • 1...Sd2
        • 2.Rxd2#
      • 1...Sh4
        • 2.Rd2#
      • 1...Se5
        • 2.Rd2#
      • 1...Sd6
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::R1(B)
    • S(b);N_GUARD::R1(B),XS(b)
    • S(d);N_GUARD::R1(B)
    • S(d);CHECK,N_GUARD::R1(B),XS(d)
  • Tries
    • Try
      • R(D);P_PINS(b)
      • Threat
        • R1(B)
      • Vars
        • S(d);CHECK,N_GUARD::R1(B),XS(d)
      • Refutation
        • S(d);XB(F)
  • Actual
    • Q(K);
    • Threat
      • QAB(K)
    • Vars
      • S(d);CHECK,N_GUARD::R1(B),XS(d)
      • S(b);OGATEB,P_SPINS(b),XB(F)::R(D)
      • S(d);OGATEB,P_SPINS(d),XB(F)::B(J)
      • S(b);N_GUARD::R1(B),XS(b)
      • S(b);N_GUARD::R1(B)
      • S(d);N_GUARD::R1(B)
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