MESON Chess Problem Database

Problem Display
PID: 47469 (1q6/3B4/P2p4/QPppbP2/1Nkrp3/3p4/1P1Pp1n1/1K2n3 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Comm., Casa-70 JT, 2002

1q6/3B4/P2p4/QPppbP2/1Nkrp3/3p4/1P1Pp1n1/1K2n3

#2

9 + 12

56 The Problemist 2003

SOLUTION

  • SOUND
  • Tries
    • 1.Sa2?
      • threat
        • 2.Qc3#
        • 2.Qa4#
      • 1...Qxb5
        • 2.Qc3#
        • 2.Qxb5#
      • 1...Sc2
        • 2.Qc3#
      • 1...Kb3!
    • 1.Sc2?
      • threat
        • 2.Qc3#
        • 2.Qa2#
        • 2.Qa4#
      • 1...Kb3
        • 2.Qa2#
      • 1...Qxb5
        • 2.Qc3#
        • 2.Qxb5#
      • 1...Sxc2
        • 2.Qc3#
      • 1...dxc2+!
    • 1.Sxd5?
      • threat
        • 2.Qa2#
      • 1...Kb3
        • 2.Qa2#
      • 1...Kxd5
        • 2.Be6#
      • 1...Rxd5
        • 2.Qa4#
      • 1...Qxb5!
    • 1.Sc6?
      • threat
        • 2.Qa4#
      • 1...Kb3
        • 2.Qa2#
      • 1...Qxb5
        • 2.Qc3#
      • 1...Sc2!
    • 1.Qa4?
      • threat
        • 2.Sa2#
        • 2.Sc2#
        • 2.Sc6#
        • 2.b3#
      • 1...Qxb5
        • 2.Bxb5#
        • 2.b3#
      • 1...Sc2
        • 2.Sxc2#
        • 2.b3#
      • 1...cxb4!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Qc3#
      • 1...Kb3
        • 2.Qa2#
      • 1...Kxd3
        • 2.Qc3#
      • 1...Rxd3
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • DUALS(3)
      • Vars
        • K(e);S_FLIGHT::QAB1(E)
        • S(a);XS(D)::QAR1(E)
      • Refutation
        • P(d);CHECK,XS(D)
    • Try
      • S(D);XP(i)
      • Threat
        • QAB(E)
      • Vars
        • K(e);S_FLIGHT::QAB1(E)
        • K(e);OGATEB,S_FLIGHT,XS(D)::B(I)
        • R(f);SBLOCK,XS(D)::QAR2(E)
      • Refutation
        • Q(l);P_PINP(B),XP(F)
    • Try
      • S(D);
      • Threat
        • QAR2(E)
      • Vars
        • K(e);S_FLIGHT::QAB1(E)
        • Q(l);P_PINP(B),SBLOCK,XP(F)::QAR1(E)
      • Refutation
        • S(a);
    • Try
      • Q(E);
      • Threat
        • DUALS(4)
      • Refutation
        • P(h);P_SPINP(h),XS(D)
  • Actual
    • S(D);XP(d)
    • Threat
      • QAR1(E)
    • Vars
      • K(e);S_FLIGHT::QAB1(E)
      • K(e);S_FLIGHT,XS(D)::QAR1(E)
      • R(f);SBLOCK,XS(D)::QAR2(E)
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