MESON Chess Problem Database

Problem Display
PID: 54551 (7b/5r1q/1p2N3/BK2p2n/P4pP1/RBPk4/3P1Q2/1b6 w - - 0 1)

Kopaev, Viacheslav Georgievich

2nd Comm., Praca, 1994

7b/5r1q/1p2N3/BK2p2n/P4pP1/RBPk4/3P1Q2/1b6

#2

10 + 9

5454 Near Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe2#
    • 1...f3
      • 2.Qe3#
    • 1...bxa5
      • 2.Sc5#
  • Tries
    • 1.Sxf4+?
      • 1...Ke4
        • 2.Bd5#
        • 2.Qe3#
      • 1...Rxf4
        • 2.Qe3#
      • 1...Sxf4
        • 2.Qe3#
      • 1...exf4!
    • 1.Bd1?
      • threat
        • 2.Qe2#
      • 1...Ke4
        • 2.Qf3#
      • 1...Qe4
        • 2.c4#
      • 1...f3
        • 2.Qe3#
      • 1...Sg3!
    • 1.Bc4+?
      • 1...Ke4
        • 2.Sg5#
        • 2.Qe2#
      • 1...Kc2!
    • 1.Bxb6?
      • threat
        • 2.Sc5#
      • 1...Ke4
        • 2.Sc5#
        • 2.Qe2#
      • 1...Rc7!
    • 1.Qf1+?
      • 1...Ke4
        • 2.Sg5#
        • 2.Qe2#
      • 1...Kxd2!
  • Keys
    • 1.c4!
      • threat
        • 2.Qf3#
      • 1...Ke4
        • 2.Qe2#
      • 1...bxa5
        • 2.Sc5#
      • 1...Qe4
        • 2.Bd1#
      • 1...f3
        • 2.Qe3#
      • 1...e4
        • 2.Qf1#

Anticipated by 29941(1994)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(B)
    • P(c);N_GUARD::QAR1(B)
    • P(f);N_GUARD,XB(H)::S(J)
  • Tries
    • Try
      • S(J);CHECK,XP(c)
      • Vars
        • R(g);XS(J)::QAR1(B)
        • S(e);XS(J)::QAR1(B)
      • Refutation
        • P(d);XS(J)
    • Try
      • B(D);
      • Threat
        • QAB1(B)
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • Q(h);SBLOCK::R(C)+P(E)
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • S(e);
    • Try
      • B(D);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(H);XP(f)
      • Threat
        • S(J)
      • Refutation
        • R(g);
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);P-FLIGHT,XP(A)
  • Actual
    • P(E);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);S_FLIGHT::QAR2(B)
      • P(f);N_GUARD,XB(H)::S(J)
      • Q(h);SBLOCK::R(C)+B(D)
      • P(c);N_GUARD::QAR1(B)
      • P(d);SBLOCK::QAB(B)
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