MESON Chess Problem Database

Problem Display
PID: 244589 (2R2BB1/N2pn3/p2k2p1/4p3/1pp4R/b2p4/8/1Q3K2 w - - 0 1)

Bunka, Vladislav

Sachove umeni (Ceskoslovensky sach), 2012

2R2BB1/N2pn3/p2k2p1/4p3/1pp4R/b2p4/8/1Q3K2

#2

7 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxb4#
    • 1...d2
      • 2.Qxg6#
    • 1...c3
      • 2.Qxd3#
    • 1...a5
      • 2.Sb5#
    • 1...g5
      • 2.Rh6#
  • Tries
    • 1.Rcxc4?
      • threat
        • 2.Sc8#
        • 2.Qxd3#
      • 1...Bb2
        • 2.Sc8#
      • 1...d2
        • 2.Sc8#
        • 2.Qd3#
        • 2.Qxg6#
      • 1...e4!
  • Keys
    • 1.Qa2!
      • 1...e4
        • 2.Qh2#
      • 1...Bb2
        • 2.Qxa6#
      • 1...Bc1
        • 2.Qxa6#
      • 1...d2
        • 2.Qxd2#
      • 1...b3
        • 2.Qxa3#
      • 1...c3
        • 2.Qd5#
      • 1...a5
        • 2.Sb5#
      • 1...g5
        • 2.Rh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB(A),XP(c)
    • P(b);OGATE::QAR(A),XP(h)
    • P(d);N_GUARD::QAR(A),XP(b)
    • P(f);N_GUARD::S(D)
    • P(h);OGATEB::R(C)
  • Tries
    • Try
      • R(E);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::S(D)
      • Refutation
        • P(e);
  • Actual
    • Q(A);
    • Vars
      • P(e);OGATEB::QAB(A)
      • B(a);OGATE::QAR(A),XP(f)
      • P(b);OGATEB::QAR(A),XP(b)
      • P(c);OGATEB::QAB(A),XB(a)
      • P(d);OGATE::QAR1(A)
      • P(f);N_GUARD::S(D)
      • P(h);OGATEB::R(C)
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