MESON Chess Problem Database

Problem Display
PID: 141954 (7K/b4B2/8/1Q1P4/2Pk1Pn1/5P2/3BP3/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

4th Prize, Chervoni Girnik, 1999

7K/b4B2/8/1Q1P4/2Pk1Pn1/5P2/3BP3/8

#2

9 + 3

6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2+?
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kc5!
    • 1.Qb4?
      • threat
        • 2.c5#
      • 1...Bc5
        • 2.Qc3#
      • 1...Se3
        • 2.Bc3#
      • 1...Se5!
    • 1.Qb6+?
      • 1...Kxc4
        • 2.Qb4#
        • 2.d6#
      • 1...Bxb6!
    • 1.c5?
      • threat
        • 2.Qb4#
      • 1...Bxc5
        • 2.Qd3#
      • 1...Se5
        • 2.e3#
      • 1...Se3!
  • Keys
    • 1.d6!
      • threat
        • 2.Qd5#
      • 1...Bc5
        • 2.Qb2#
      • 1...Se3
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR(F)+P(D)
      • Vars
        • B(c);SBLOCK::QAB1(F)
        • S(b);SBLOCK::B(A)
      • Refutation
        • S(b);
    • Try
      • Q(F);CHECK
      • Refutation
        • B(c);XQ(F)
    • Try
      • P(D);
      • Threat
        • QAR2(F)
      • Vars
        • B(c);SBLOCK,XP(D)::QAR1(F)
        • S(b);N_GUARD::P(B)
      • Refutation
        • S(b);
  • Actual
    • P(G);
    • Threat
      • QAR1(F)
    • Vars
      • B(c);SBLOCK::QAB(F)
      • S(b);N_GUARD::QAB1(F)
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