MESON Chess Problem Database

Problem Display
PID: 268778 (N7/1r4b1/2p1R3/1PBk1P2/QPn2Pp1/5P2/2N3n1/5b1K w - - 0 1)

Armeni, Alberto

Problemas, 2020

N7/1r4b1/2p1R3/1PBk1P2/QPn2Pp1/5P2/2N3n1/5b1K

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Sc7#
    • 1...Rb6
      • 2.Sc7#
    • 1...Rc7
      • 2.Sxc7#
    • 1...Rb8
      • 2.Sc7#
  • Tries
    • 1.Qa2?
      • threat
        • 2.Rd6#
      • 1...Sxf4
        • 2.Se3#
      • 1...Rd7
        • 2.Sb6#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bf8
        • 2.Re5#
      • 1...gxf3!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Rd6#
      • 1...Sxf4
        • 2.Se3#
      • 1...gxf3
        • 2.Qxf3#
      • 1...Rd7
        • 2.Sb6#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bf8
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(g);N_GUARD,XP(G)::S(K)
    • R(g);N_GUARD::S(K)
    • R(g);N_GUARD::S(K),XR(g)
  • Tries
    • Try
      • Q(D);P_PINS(c)
      • Threat
        • R1(J)
      • Vars
        • S(b);N_GUARD,XP(F)::S(B)
        • R(g);N_GUARD::S(K)
        • B(h);N_GUARD::R1(J),XB(h)
        • B(h);N_GUARD::R1(J)
      • Refutation
        • P(d);XP(C)
  • Actual
    • Q(D);P_PINS(c)
    • Threat
      • R1(J)
    • Vars
      • S(b);N_GUARD,XP(F)::S(B)
      • P(d);OGATE,XP(C)::QAB(D),XP(d)
      • R(g);N_GUARD::S(K)
      • B(h);N_GUARD::R1(J),XB(h)
      • B(h);N_GUARD::R1(J)
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