MESON Chess Problem Database

Problem Display
PID: 11732 (8/8/2p5/2pp4/8/3k4/1Q4B1/3K4 w - - 0 1)

Zagoruyko, Leonid Ivanovich

4th HM., Molot, 1971

8/8/2p5/2pp4/8/3k4/1Q4B1/3K4

#2

3 + 4

3296 Shakhmatny zadachi miniaturi 1987
2786 More Fun with Chess Miniatures 2000
145 StrateGems 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qd2#
    • 1...Kc4
      • 2.Bf1#
    • 1...c4
      • 2.Qd2#
    • 1...d4
      • 2.Qb3#
  • Tries
    • 1.Kc1?
      • 1...Ke3
        • 2.Qd2#
      • 1...Kc4
        • 2.Bf1#
      • 1...c4
        • 2.Qd2#
      • 1...d4!
    • 1.Bh1?
      • 1...Ke3
        • 2.Qd2#
      • 1...c4
        • 2.Qd2#
      • 1...d4
        • 2.Qb3#
      • 1...Kc4!
    • 1.Bf3?
      • 1...Kc4
        • 2.Be2#
      • 1...c4
        • 2.Qd2#
      • 1...d4
        • 2.Qb3#
      • 1...Ke3!
    • 1.Bxd5?
      • threat
        • 2.Qd2#
      • 1...Ke3
        • 2.Qd2#
      • 1...cxd5!
    • 1.Qc2+?
      • 1...Ke3
        • 2.Qd2#
      • 1...Kd4!
    • 1.Qb4?
      • 1...Ke3
        • 2.Qd2#
      • 1...c4
        • 2.Qd2#
      • 1...d4
        • 2.Qb3#
      • 1...cxb4!
  • Keys
    • 1.Ke1!
      • 1...Ke3
        • 2.Qd2#
      • 1...Kc4
        • 2.Bf1#
      • 1...c4
        • 2.Qd2#
      • 1...d4
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAB1(B)
    • K(a);S_FLIGHT::B(C)
    • P(b);SBLOCK::QAR1(B)
    • P(c);SBLOCK::QAR2(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAR1(B)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAR1(B)
        • P(c);SBLOCK::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAR1(B)
        • P(c);SBLOCK::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);XP(c)
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • P(d);XB(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAR1(B)
        • P(c);SBLOCK::QAR2(B)
      • Refutation
        • P(b);XQ(B)
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::B(C)
      • P(b);SBLOCK::QAR1(B)
      • P(c);SBLOCK::QAR2(B)
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