MESON Chess Problem Database

Problem Display
PID: 162438 (6br/1p5p/2pp1KpP/3k4/4p3/4P2Q/8/2R5 w - - 0 1)

Caplin, Aleksandr Borisovich

Kamsiaski, A

Sachmatija, 2010

6br/1p5p/2pp1KpP/3k4/4p3/4P2Q/8/2R5

#2

5 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qxe6#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qc4#
        • 2.Qd1#
      • 1...b5
        • 2.Qd1#
      • 1...c5!
    • 1.Qg2?
      • threat
        • 2.Qa2#
        • 2.Qd2#
        • 2.Qg5#
      • 1...Be6
        • 2.Qa2#
        • 2.Qd2#
      • 1...g5
        • 2.Qa2#
        • 2.Qd2#
        • 2.Qxg5#
      • 1...c5!
    • 1.Qg4?
      • threat
        • 2.Qd1#
        • 2.Qg5#
      • 1...Be6
        • 2.Qd1#
        • 2.Qxe6#
      • 1...g5
        • 2.Qd1#
        • 2.Qf5#
        • 2.Qxg5#
      • 1...c5!
    • 1.Qc8?
      • 1...Be6
        • 2.Qxe6#
      • 1...c5
        • 2.Qxb7#
      • 1...g5
        • 2.Qf5#
      • 1...b5
        • 2.Qxc6#
      • 1...b6
        • 2.Qxc6#
      • 1...Bf7!
    • 1.Qh5+?
      • 1...g5
        • 2.Qd1#
        • 2.Qxg5#
      • 1...gxh5!
  • Keys
    • 1.Qd7!
      • 1...Bf7
        • 2.Qxf7#
      • 1...Be6
        • 2.Qxe6#
      • 1...c5
        • 2.Qxb7#
      • 1...g5
        • 2.Qf5#
      • 1...b5
        • 2.Qxc6#
      • 1...b6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(h);N_GUARD::QAB1(C),XB(h)
    • P(e);N_GUARD::QAR2(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::QAR(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);P_PINP(a)
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Vars
        • B(h);N_GUARD::QAB1(C),XB(h)
        • P(c);OGATEB::QAB(C),XP(f)
        • P(e);N_GUARD::QAR2(C)
        • P(f);N_GUARD::QAB1(C),XP(c)
      • Refutation
        • B(h);
    • Try
      • Q(C);CHECK
      • Refutation
        • P(e);XQ(C)
  • Actual
    • Q(C);P_PINP(d)
    • Vars
      • B(h);N_GUARD::QAB(C),XB(h)
      • B(h);N_GUARD::QAB1(C),XB(h)
      • P(c);OGATEB::QAB(C),XP(f)
      • P(e);N_GUARD::QAR2(C)
      • P(f);N_GUARD::QAB1(C),XP(c)
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