MESON Chess Problem Database

Problem Display
PID: 150027 (8/3Qp3/1KBqR3/Nn6/8/1N1k4/2R5/8 w - - 0 1)

Albaina, Alvaro Ignacio

Problemas, 1990

8/3Qp3/1KBqR3/Nn6/8/1N1k4/2R5/8

#2

7 + 4

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Rd2#
  • Tries
    • 1.Sc1+?
      • 1...Kd4
        • 2.Sab3#
        • 2.Rc4#
        • 2.Re4#
      • 1...Kxc2!
    • 1.Sc5+?
      • 1...Kd4
        • 2.Sab3#
        • 2.Rc4#
        • 2.Re4#
      • 1...Kxc2!
  • Keys
    • 1.Ree2!
      • threat
        • 2.Qf5#
      • 1...Qd4+
        • 2.Sc5#
      • 1...Qxd7
        • 2.Be4#
      • 1...Qd5
        • 2.Bxb5#
      • 1...Sc3
        • 2.Rcd2#
      • 1...Sd4
        • 2.Sc1#
      • 1...e5
        • 2.Qh3#
      • 1...e6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R1(A)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);N_SPINQ(c),S_FLIGHT,XR(A)
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);N_SPINQ(c),S_FLIGHT,XR(A)
  • Actual
    • R(F);
    • Threat
      • QAB(G)
    • Vars
      • Q(c);CHECK,N_PINB(E)::S(B)
      • Q(c);N_PINB(E),N_SPINQ(c),XQ(G)::B(E)
      • Q(c);N_PINB(E)::B(E),XS(b)
      • S(b);SBLOCK::R1(A)
      • S(b);N_SPINQ(c),SBLOCK::S(B)
      • P(d);::QAR(G)
      • P(d);OGATE::QAB(G)
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