MESON Chess Problem Database

Problem Display
PID: 251146 (2KN4/4p3/B1pbp3/2BkPp2/P6p/1p1N1P2/b6r/3Q4 w - - 0 1)

Chepizhni, Viktor Ivanovich

Uralski Problemist, 2012

2KN4/4p3/B1pbp3/2BkPp2/P6p/1p1N1P2/b6r/3Q4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb3#
  • Tries
    • 1.Sf2+?
      • 1...Kxe5
        • 2.Qd4#
      • 1...Kxc5!
    • 1.Sb4+?
      • 1...Kxe5
        • 2.Qd4#
      • 1...Kxc5!
    • 1.Sf4+?
      • 1...Kxe5
        • 2.Qd4#
      • 1...Kxc5!
    • 1.Sxe6?
      • threat
        • 2.Sef4#
      • 1...Kxe6
        • 2.Bc4#
      • 1...Bxe5
        • 2.Sdf4#
      • 1...f4
        • 2.Sexf4#
      • 1...Bxc5!
    • 1.Qa1?
      • threat
        • 2.Qd4#
      • 1...Bxc5
        • 2.Sf4#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...b2
        • 2.Qxa2#
      • 1...Rb2!
    • 1.Qg1?
      • threat
        • 2.Qd4#
      • 1...Bxc5
        • 2.Qxc5#
      • 1...Bxe5
        • 2.Sb4#
      • 1...Rf2!
  • Keys
    • 1.Sxc6!
      • threat
        • 2.Scb4#
      • 1...Kxc6
        • 2.Bb7#
      • 1...Bxc5
        • 2.Sdb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB(A),XP(c)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT,XB(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT,XB(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT,XB(E)
    • Try
      • S(I);XP(i)
      • Threat
        • S(I)
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XS(I)::B(G)
        • B(h);SBLOCK,XP(F)::QAR(A)+S(B),DCHECK
        • P(f);::S(I),XP(f)
      • Refutation
        • B(h);XB(E)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(h);SBLOCK,XB(E)::S(B)
        • B(h);OGATE,XP(F)::QAR1(A),XB(h)
        • P(c);OGATEB::QAB(A),XB(a)
      • Refutation
        • R(b);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(h);OGATE,XB(E)::QAR1(A),XB(h)
        • B(h);SBLOCK,XP(F)::S(B)
      • Refutation
        • R(b);
  • Actual
    • S(I);XP(g)
    • Threat
      • S(I)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(I)::B(G)
      • B(h);SBLOCK,XB(E)::QAR(A)+S(B),DCHECK
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