MESON Chess Problem Database

Problem Display
PID: 80080 (8/8/8/K3N3/2Q1Br2/3PNq1R/2pkpp2/R7 w - - 0 1)

Rudenko, Valentin Fedorovich

Presledovanie Temi, 1983

8/8/8/K3N3/2Q1Br2/3PNq1R/2pkpp2/R7

#2

8 + 6

6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Qxc2#
      • 2.Qb4#
    • 1...Qg2
      • 2.Qxc2#
      • 2.Qb4#
    • 1...Qxe4
      • 2.Qxc2#
    • 1...Qg4
      • 2.Qxc2#
      • 2.Qb4#
    • 1...Qh5
      • 2.Qxc2#
      • 2.Qb4#
    • 1...Qxe3
      • 2.Qb4#
    • 1...c1Q
      • 2.Qxc1#
    • 1...c1S
      • 2.Qxc1#
    • 1...c1B
      • 2.Qxc1#
    • 1...c1R
      • 2.Qxc1#
  • Tries
    • 1.Sxf3+?
      • 1...Kxe3
        • 2.Qd4#
        • 2.Qc5#
      • 1...Rxf3!
    • 1.Qc3+?
      • 1...Kxe3
        • 2.Sc4#
      • 1...Kxc3!
  • Keys
    • 1.d4!
      • threat
        • 2.Qd3#
      • 1...Kxe3
        • 2.Qd3#
      • 1...Qxe4
        • 2.Qb4#
      • 1...Qxe3
        • 2.Qxc2#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...e1S
        • 2.Sf1#

This is after

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(e);XB(F)::QAR1(E),XP(a)
    • Q(e);XS(C)::QAB(E)
    • P(a);OGATE::QAB1(E),XQ(a)
    • P(a);OGATE::QAB1(E),XS(a)
    • P(a);OGATE::QAB1(E),XB(a)
    • P(a);OGATE::QAB1(E),XR(a)
  • Tries
    • Try
      • S(H);CHECK,XQ(e)
      • Refutation
        • R(f);XS(H)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P_SPINQ(e),S_FLIGHT,XS(C)::S(H)
      • Refutation
        • K(b);S_FLIGHT,XQ(E)
  • Actual
    • P(B);
    • Threat
      • QAR1(E)
    • Vars
      • K(b);P_SPINQ(e),S_FLIGHT,XS(C)::QAR1(E)
      • Q(e);XB(F)::QAB(E)
      • Q(e);XS(C)::QAR1(E),XP(a)
      • P(a);OGATE::QAB1(E),XQ(a)
      • P(a);OGATE::QAB1(E),XS(a)
      • P(a);OGATE::QAB1(E),XB(a)
      • P(a);OGATE::QAB1(E),XR(a)
      • P(c);N_GUARD::S(C)
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