MESON Chess Problem Database

Problem Display
PID: 177829 (8/5p1B/5PpB/2p1Q3/2N5/RP6/1NP2p2/bk3K2 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Vasilenko, Anatoly Grigorovich

3rd Comm., Sahs (Latvia), 1983

8/5p1B/5PpB/2p1Q3/2N5/RP6/1NP2p2/bk3K2

#2

10 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb2
      • 2.Qxb2#
  • Tries
    • 1.Kxf2?
      • 1...Bxb2
        • 2.Qxb2#
      • 1...g5
        • 2.Qe1#
      • 1...Kxc2!
    • 1.Be3?
      • 1...Bxb2
        • 2.Qxb2#
      • 1...g5
        • 2.c3#
      • 1...Kxc2!
    • 1.Bf4?
      • 1...Bxb2
        • 2.Qxb2#
      • 1...g5
        • 2.c3#
      • 1...Kxc2!
    • 1.Bg5?
      • 1...Bxb2
        • 2.Qxb2#
      • 1...Kxc2!
    • 1.Bxg6?
      • 1...Bxb2
        • 2.Qxb2#
      • 1...fxg6!
    • 1.Qc3?
      • 1...Bxb2
        • 2.Qxb2#
      • 1...g5!
    • 1.Qd4?
      • threat
        • 2.Qd1#
      • 1...Kxc2
        • 2.Qd3#
      • 1...Bxb2
        • 2.Qxb2#
      • 1...cxd4!
    • 1.Qf4?
      • threat
        • 2.Qc1#
      • 1...Kxc2
        • 2.Qc1#
      • 1...g5
        • 2.c3#
      • 1...Bxb2!
    • 1.Qd6?
      • threat
        • 2.Qd1#
      • 1...Kxc2
        • 2.Qd3#
      • 1...Bxb2!
    • 1.Qe3?
      • threat
        • 2.Qc1#
      • 1...Kxc2
        • 2.Qc1#
        • 2.Qd3#
      • 1...g5
        • 2.c3#
      • 1...Bxb2!
    • 1.Qd5?
      • threat
        • 2.Qd1#
      • 1...Kxc2
        • 2.Qd3#
      • 1...Bxb2!
    • 1.Qg5?
      • threat
        • 2.Qc1#
      • 1...Kxc2
        • 2.Qc1#
      • 1...Bxb2!
  • Keys
    • 1.Bd2!
      • 1...Kxc2
        • 2.Qe4#
      • 1...Bxb2
        • 2.Qxb2#
      • 1...g5
        • 2.c3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE,XS(B)::QAR1(G),XB(a)
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(c)
      • Vars
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
        • P(e);::QAR(G)
      • Refutation
        • K(b);P_SPINP(e),S_FLIGHT,XP(C)
    • Try
      • B(I);
      • Vars
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
        • P(e);::B(J)+P(C)
      • Refutation
        • K(b);P_SPINP(e),S_FLIGHT,XP(C)
    • Try
      • B(I);
      • Vars
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
        • P(e);::B(J)+P(C)
      • Refutation
        • K(b);P_SPINP(e),S_FLIGHT,XP(C)
    • Try
      • B(I);
      • Vars
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
      • Refutation
        • K(b);P_SPINP(e),S_FLIGHT,XP(C)
    • Try
      • B(J);XP(e)
      • Vars
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
      • Refutation
        • P(f);XB(J)
    • Try
      • Q(G);
      • Vars
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
      • Refutation
        • P(e);
    • Try
      • Q(G);
      • Threat
        • QAR2(G)
      • Vars
        • K(b);OGATEB,P_SPINP(e),S_FLIGHT,XP(C)::QAB1(G)
        • B(a);OGATE,XS(B)::QAR1(G),XB(a)
      • Refutation
        • P(d);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P_SPINP(e),S_FLIGHT,XP(C)::QAR1(G)
        • P(e);::B(J)+P(C)
      • Refutation
        • B(a);XS(B)
    • Try
      • Q(G);
      • Threat
        • QAR2(G)
      • Vars
        • K(b);OGATEB,P_SPINP(e),S_FLIGHT,XP(C)::QAB1(G)
      • Refutation
        • B(a);XS(B)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • P(e);::B(J)+P(C)
      • Refutation
        • B(a);XS(B)
    • Try
      • Q(G);
      • Threat
        • QAR2(G)
      • Vars
        • K(b);OGATEB,P_SPINP(e),S_FLIGHT,XP(C)::QAB1(G)
      • Refutation
        • B(a);XS(B)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P_SPINP(e),S_FLIGHT,XP(C)::QAR1(G)
      • Refutation
        • B(a);XS(B)
  • Actual
    • B(I);
    • Vars
      • K(b);OGATEB,P_SPINP(e),S_FLIGHT,XP(C)::QAB(G)
      • B(a);OGATE,XS(B)::QAR1(G),XB(a)
      • P(e);::B(J)+P(C)
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