MESON Chess Problem Database

Problem Display
PID: 284103 (Q7/1B5R/4pP2/2p1k1pP/2P3p1/1P2p1Np/4P2K/8 w - - 0 1)

Dowd, Steven B

Echemendia, Luis

Zaragoza-65 JT (Problemas), 2025

Q7/1B5R/4pP2/2p1k1pP/2P3p1/1P2p1Np/4P2K/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qa1#
    • 1...Kd6
      • 2.Qb8#
    • 1...Kxf6
      • 2.Qh8#
  • Tries
    • 1.Bg2?
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qh8#
      • 1...hxg2!
    • 1.Bf3?
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qh8#
      • 1...gxf3!
    • 1.Be4?
      • 1...Kd4
        • 2.Qa1#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qh8#
      • 1...Kf4!
    • 1.Rd7?
      • 1...Kxf6
        • 2.Qh8#
      • 1...Kf4!
    • 1.Rf7?
      • 1...Kd4
        • 2.Qa1#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kf4!
    • 1.Qa1+?
      • 1...Kd6
        • 2.Se4#
      • 1...Kf4!
    • 1.Qb8+?
      • 1...Kxf6
        • 2.Qh8#
      • 1...Kd4!
  • Keys
    • 1.Bh1!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);N_GUARD,S_FLIGHT::QAB(J)
    • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
  • Tries
    • Try
      • B(H);
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAB(J)
        • K(e);N_GUARD,S_FLIGHT::QAR1(J)
        • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • P(b);XB(H)
    • Try
      • B(H);
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAB(J)
        • K(e);N_GUARD,S_FLIGHT::QAR1(J)
        • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • P(c);XB(H)
    • Try
      • B(H);
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAB(J)
        • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • R(I);
      • Vars
        • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • R(I);
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAB(J)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);N_GUARD,S_FLIGHT::S(D)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • B(H);
    • Vars
      • K(e);N_GUARD,S_FLIGHT::QAB(J)
      • K(e);N_GUARD,S_FLIGHT::QAR1(J)
      • K(e);OGATEB,S_FLIGHT,XP(G)::QAB(J)
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