MESON Chess Problem Database

Problem Display
PID: 132777 (4B3/1p2p3/1Q6/4PP1P/3Nk3/4P1PK/2P4R/B7 w - - 0 1)

Armeni, Alberto

Problem Observer, 2009

4B3/1p2p3/1Q6/4PP1P/3Nk3/4P1PK/2P4R/B7

#2

12 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe3
      • 2.Re2#
    • 1...Kxe5
      • 2.Qe6#
  • Tries
    • 1.Sb3?
      • 1...Kf3
        • 2.Sd2#
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxf5
        • 2.Qg6#
      • 1...e6!
    • 1.Bf7?
      • 1...Kxe3
        • 2.Re2#
      • 1...Kxe5
        • 2.Qe6#
      • 1...e6!
    • 1.Qc6+?
      • 1...Kxe3
        • 2.Re2#
        • 2.Qf3#
      • 1...Kxe5
        • 2.Qe6#
      • 1...bxc6!
    • 1.Qxb7+?
      • 1...Kxe3
        • 2.Re2#
        • 2.Qf3#
      • 1...Kxe5!
  • Keys
    • 1.Se6!
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxf5
        • 2.Bg6#

This is a version of 26004

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(D)::R1(C)
    • K(a);OGATEB,P-FLIGHT,XP(H)::QAR1(K)
  • Tries
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT::S(G)
        • K(a);S_FLIGHT::QAR1(K)
        • K(a);OGATEB,S_FLIGHT,XP(I)::QAB1(K)
      • Refutation
        • P(c);
    • Try
      • B(L);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(C)
        • K(a);OGATEB,P-FLIGHT,XP(H)::QAR1(K)
      • Refutation
        • P(c);
    • Try
      • Q(K);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(H)::QAR1(K)
      • Refutation
        • P(b);XQ(K)
    • Try
      • Q(K);CHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT,XP(H)
  • Actual
    • S(G);
    • Vars
      • K(a);S_FLIGHT::S(G)
      • K(a);S_FLIGHT::QAR1(K)
      • K(a);OGATEB,S_FLIGHT,XP(I)::B(L)
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