MESON Chess Problem Database

Problem Display
PID: 278495 (3Kn3/p3Np2/3k4/1Rp1pP2/1pp1p3/8/Q2P4/qb5B w - - 0 1)

Armeni, Alberto

Peris-120 MT (Problemas), 2024

3Kn3/p3Np2/3k4/1Rp1pP2/1pp1p3/8/Q2P4/qb5B

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Qa6#
    • 1...Qc3
      • 2.Qa6#
    • 1...Qd4
      • 2.Qa6#
    • 1...c3
      • 2.Qd5#
    • 1...e3
      • 2.Sc8#
    • 1...a5
      • 2.Rb6#
    • 1...a6
      • 2.Rb6#
  • Tries
    • 1.Rxc5?
      • threat
        • 2.Rd5#
        • 2.Rc6#
      • 1...Qd4
        • 2.Rc6#
      • 1...Sf6
        • 2.Rc6#
      • 1...Sc7
        • 2.Rc6#
      • 1...Kxc5!
  • Keys
    • 1.d4!
      • threat
        • 2.dxc5#
      • 1...Qxd4
        • 2.Qa6#
      • 1...cxd4
        • 2.Rd5#
      • 1...exd4
        • 2.Qh2#
      • 1...cxd4 ep
        • 2.Qd5#
      • 1...exd4 ep
        • 2.Sc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::QAR(B)
    • P(d);OGATE::QAR1(B)
    • P(e);::S(F)
    • P(i);N_GUARD::R(D)
  • Tries
    • Try
      • R(D);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::R1(D)
        • S(k);::R1(D)
      • Refutation
        • K(h);S_FLIGHT,XR(D)
  • Actual
    • P(C);
    • Threat
      • P(C),XP(f)
    • Vars
      • Q(a);N_GUARD,XP(C)::QAR(B)
      • P(f);OGATE,XP(C)::R1(D)
      • P(g);OGATEB,XP(C)::QAB(B)
      • P(d);EP,OGATE,XP(C)::QAR1(B)
      • P(e);EP,XP(C)::S(F)
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