MESON Chess Problem Database

Problem Display
PID: 98704 (8/2pQR3/2Pp4/8/1r1kN2K/bp6/1n6/B1R2N2 w - - 0 1)

Salazar Lopez, Francisco

Problemas, 1972

8/2pQR3/2Pp4/8/1r1kN2K/bp6/1n6/B1R2N2

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rd1#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Se4#
        • 2.Sb5#
        • 2.Sf5#
        • 2.Sb7#
        • 2.Sf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Kd3+
        • 2.Sc4#
      • 1...Kd5+
        • 2.Se4#
      • 1...cxd6
        • 2.Qxd6#
      • 1...Ra4
        • 2.Sb5#
        • 2.Sf5#
      • 1...Rb5
        • 2.Sxb5#
        • 2.Sf5#
      • 1...Rb6
        • 2.Sb5#
        • 2.Sf5#
      • 1...Rb7
        • 2.Sb5#
        • 2.Sf5#
      • 1...Rb8
        • 2.Sb5#
        • 2.Sf5#
      • 1...Rc4!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qd1#
      • 1...Kd3
        • 2.Sf2#
      • 1...Kd5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::R(B)
  • Tries
    • Try
      • S(D);XP(f)
      • Threat
        • DUALS(7)
      • Vars
        • K(e);CHECK,N_SPINS(a),P-FLIGHT::QAR(G)+S(D)
        • P(g);OGATE,P_SPINP(g),XS(D)::QAR2(G),XP(g)
      • Refutation
        • R(d);
  • Actual
    • Q(G);N_PINP(f)
    • Threat
      • QAR(G)
    • Vars
      • K(e);N_SPINS(a),P-FLIGHT::S(D)
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