MESON Chess Problem Database

Problem Display
PID: 59804 (Q3R3/p2B4/p1R3p1/P5p1/6p1/4P1Pp/1N2kB1P/3N3K w - - 0 1)

Bourd, Evgeny

1st HM., StrateGems, 2005

Q3R3/p2B4/p1R3p1/P5p1/6p1/4P1Pp/1N2kB1P/3N3K

#2

12 + 7

145 StrateGems 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Rc2#
  • Tries
    • 1.Kg1?
      • threat
        • 2.Rc2#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kd2!
    • 1.Bxg4+?
      • 1...Kd2
        • 2.Rd8#
        • 2.Qd8#
      • 1...Kf1!
    • 1.Bf5?
      • 1...Kf1
        • 2.Bd3#
      • 1...Kd2
        • 2.Rc2#
      • 1...Kf3
        • 2.Rc2#
      • 1...gxf5!
    • 1.Be6?
      • 1...Kf1
        • 2.Bc4#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kd2!
    • 1.Bc8?
      • 1...Kf1
        • 2.Bxa6#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kd2!
    • 1.Rxa6?
      • 1...Kf1
        • 2.Bb5#
      • 1...Kd2!
    • 1.Rec8?
      • 1...Kd2
        • 2.Rc2#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kf1!
    • 1.Rd8?
      • 1...Kd2
        • 2.Bxg4#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kf1!
    • 1.Qb7?
      • 1...Kf1
        • 2.Qxa6#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kd2!
  • Keys
    • 1.Qc8!
      • 1...Kf1
        • 2.Qxa6#
      • 1...Kd2
        • 2.Rc2#
      • 1...Kf3
        • 2.Bxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(K)+R(I)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(I)
      • Vars
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(J);CHECK,XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);S_FLIGHT::B(J)
        • K(a);P-FLIGHT::R1(I)
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • P(f);XB(J)
    • Try
      • B(J);
      • Vars
        • K(a);S_FLIGHT::B(J)
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);S_FLIGHT::B(J),XP(e)
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(I);XP(e)
      • Vars
        • K(a);S_FLIGHT::B(J)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(L);
      • Vars
        • K(a);P-FLIGHT::R1(I)
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(L);
      • Vars
        • K(a);P-FLIGHT::R(L)+B(J),XP(c)
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(K);
      • Vars
        • K(a);S_FLIGHT::QAB(K),XP(e)
        • K(a);S_FLIGHT::QAB(K)+R(I)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(K);
    • Vars
      • K(a);S_FLIGHT::QAB(K),XP(e)
      • K(a);P-FLIGHT::R1(I)
      • K(a);S_FLIGHT::B(J),XP(c)
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