MESON Chess Problem Database

Problem Display
PID: 158942 (4Q3/7b/7p/4pk1p/2N2N1P/8/4RK2/8 w - - 0 1)

Markovic, Mirko B

2nd Comm., Delo in Tovaris, 1969

4Q3/7b/7p/4pk1p/2N2N1P/8/4RK2/8

#2

6 + 5

15523 Moje Sahovske Kompozicije (Markovic) 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qf8#
    • 1...exf4
      • 2.Qe6#
  • Tries
    • 1.Kf3?
      • threat
        • 2.Qf7#
        • 2.Qxe5#
        • 2.Qe6#
        • 2.Qf8#
      • 1...Kf6
        • 2.Qf8#
      • 1...exf4
        • 2.Qf7#
        • 2.Qe6#
      • 1...Bg6
        • 2.Qxg6#
        • 2.Qxe5#
        • 2.Qe6#
      • 1...Bg8
        • 2.Qg6#
        • 2.Qxe5#
      • 1...e4+!
    • 1.Kg3?
      • threat
        • 2.Qf7#
        • 2.Qxe5#
        • 2.Qe6#
        • 2.Qf8#
      • 1...Kf6
        • 2.Qf8#
      • 1...Bg6
        • 2.Qxg6#
        • 2.Qxe5#
        • 2.Qe6#
      • 1...Bg8
        • 2.Qg6#
        • 2.Qxe5#
      • 1...e4
        • 2.Qf7#
        • 2.Qe5#
        • 2.Qe6#
        • 2.Qf8#
      • 1...exf4+!
    • 1.Se3+?
      • 1...Ke4
        • 2.Qa4#
      • 1...Kf6
        • 2.Sxh5#
        • 2.Qf8#
      • 1...Kxf4!
    • 1.Qxh5+?
      • 1...Kxf4
        • 2.Qf3#
      • 1...Kf6!
    • 1.Qg6+?
      • 1...Kxf4
        • 2.Re4#
      • 1...Bxg6!
    • 1.Qc8+?
      • 1...Kf6
        • 2.Qf8#
      • 1...Kxf4!
  • Keys
    • 1.Re4!
      • 1...Kxe4
        • 2.Qxe5#
      • 1...Kg4
        • 2.Qxh5#
      • 1...Kf6
        • 2.Qf8#
      • 1...exf4
        • 2.Qe6#
      • 1...Bg8
        • 2.Qg6#
      • 1...Bg6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(F)
    • P(a);SBLOCK,XS(D)::QAB1(F)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • DUALS(4)
      • Vars
        • K(b);P-FLIGHT::QAR2(F)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(4)
      • Vars
        • K(b);P-FLIGHT::QAR2(F)
      • Refutation
        • P(a);CHECK,XS(D)
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR(F)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
    • Try
      • Q(F);CHECK,XP(c)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(D)::QAR1(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(D)::R1(A)
      • Refutation
        • B(e);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(F)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
  • Actual
    • R(A);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XR(A)::QAR1(F),XP(a)
      • K(b);S_FLIGHT::QAB1(F),XP(c)
      • K(b);P-FLIGHT::QAR2(F)
      • P(a);XS(D)::QAB1(F)
      • B(e);N_GUARD::QAB1(F)
      • B(e);N_GUARD::QAB1(F),XB(e)
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