MESON Chess Problem Database

Problem Display
PID: 162424 (1b5Q/8/3Pp3/1PBkpb2/2R5/2K1P3/8/8 w - - 0 1)

Anastasov, Ljubomir

Probleemblad, 1972

1b5Q/8/3Pp3/1PBkpb2/2R5/2K1P3/8/8

#2

7 + 5

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.e4#
    • 1...Bg4
      • 2.e4#
    • 1...Bxd6
      • 2.Qa8#
    • 1...Ba7
      • 2.Qa8#
    • 1...Bc7
      • 2.Qa8#
    • 1...e4
      • 2.Qd4#
  • Tries
    • 1.Rd4+?
      • 1...exd4+
        • 2.Qxd4#
      • 1...Kxc5!
    • 1.Qg7?
      • threat
        • 2.Qb7#
      • 1...e4
        • 2.Qd4#
      • 1...Bc7!
    • 1.Qh1+?
      • 1...Be4
        • 2.Qxe4#
      • 1...e4!
    • 1.Qc8?
      • threat
        • 2.Qb7#
        • 2.Qc6#
      • 1...Bc7
        • 2.Qb7#
        • 2.Qa8#
      • 1...e4!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qxe5#
      • 1...exd4+
        • 2.Qxd4#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kxd6
        • 2.Qd8#
      • 1...Bxd6
        • 2.Qa8#
      • 1...e4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::P(B)
    • B(e);OGATE,XP(F)::QAB(G)
    • B(e);OGATE::QAB(G)
    • P(b);OGATE::QAR1(G)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • P(b);CHECK,OGATE,XR(C)::QAR1(G),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XB(E)
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • P(b);OGATE::QAR1(G)
      • Refutation
        • B(e);
    • Try
      • Q(G);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(G),XB(c)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);
  • Actual
    • B(E);
    • Threat
      • QAR1(G),XP(b)
    • Vars
      • P(b);CHECK,OGATE,XB(E)::QAR1(G),XP(b)
      • K(a);S_FLIGHT::QAB(G)
      • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(G)
      • B(e);OGATE,SBLOCK,XP(F)::QAB(G)
      • P(b);::QAR1(G)
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