MESON Chess Problem Database

Problem Display
PID: 3209 (8/8/2K1pp1B/R1p1p3/2pk4/3p4/5P2/4Q3 w - - 0 1)

Tikhankov, Vladimir Nikolaevich

Source?, 1982

8/8/2K1pp1B/R1p1p3/2pk4/3p4/5P2/4Q3

#2

5 + 7

3242 BCPS Rapid Solving (Cheltenham) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qe3#
  • Tries
    • 1.Kd6?
      • 1...d2
        • 2.Qe3#
      • 1...e4
        • 2.Be3#
      • 1...f5
        • 2.Qxe5#
      • 1...c3!
    • 1.Bd2?
      • threat
        • 2.Bc3#
        • 2.Qe3#
      • 1...e4
        • 2.Bc3#
      • 1...c3!
    • 1.Ra3?
      • threat
        • 2.Qe3#
      • 1...e4
        • 2.Qc3#
      • 1...c3!
    • 1.Ra4?
      • 1...d2
        • 2.Qe3#
      • 1...e4
        • 2.Qa1#
      • 1...f5!
    • 1.f3?
      • threat
        • 2.Be3#
      • 1...d2
        • 2.Qxd2#
        • 2.Qe3#
      • 1...c3
        • 2.Qe4#
      • 1...e4!
  • Keys
    • 1.Rxc5!
      • 1...d2
        • 2.Qe3#
      • 1...c3
        • 2.Qe3#
      • 1...e4
        • 2.Be3#
      • 1...f5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);::QAB1(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(a);::QAB1(A)
        • P(e);SBLOCK::B(E)
        • P(g);N_GUARD::QAB1(A),XP(e)
      • Refutation
        • P(b);
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::B(E)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Threat
        • QAB1(A)
      • Vars
        • P(e);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • R(C);P_PINP(b)
      • Vars
        • P(a);::QAB1(A)
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • P(g);
    • Try
      • P(B);
      • Threat
        • B(E)
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(e);
  • Actual
    • R(C);XP(d)
    • Vars
      • P(a);::QAB1(A)
      • P(b);::QAB1(A)
      • P(e);SBLOCK::B(E)
      • P(g);N_GUARD::QAB1(A),XP(e)
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