MESON Chess Problem Database

Problem Display
PID: 287320 (4Q3/8/7N/8/4bN2/5k2/8/4K2R w K - 0 1)

Marysko, Milos

Probleemblad, 1959

4Q3/8/7N/8/4bN2/5k2/8/4K2R

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Rf1+?
      • 1...Ke3
        • 2.Sf5#
      • 1...Kg3!
    • 1.Qxe4+?
      • 1...Kg3
        • 2.Se2#
        • 2.Sh5#
        • 2.Rh3#
        • 2.Qe3#
      • 1...Kxe4!
    • 1.Qe5?
      • threat
        • 2.Rh3#
      • 1...Ke3
        • 2.Rh3#
      • 1...Kg3
        • 2.Rh3#
      • 1...Bf5!
  • Keys
    • 1.Se2!
      • 1...Kg2
        • 2.Qxe4#
      • 1...Ke3
        • 2.Rh3#
      • 1...Bb1
        • 2.0-0#
      • 1...Bc2
        • 2.0-0#
      • 1...Bd3
        • 2.0-0#
      • 1...Bd5
        • 2.0-0#
      • 1...Bf5
        • 2.0-0#
      • 1...Bc6
        • 2.0-0#
      • 1...Bg6
        • 2.0-0#
      • 1...Bb7
        • 2.0-0#
      • 1...Bh7
        • 2.0-0#
      • 1...Ba8
        • 2.0-0#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,P_SPINB(b)::S(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK,XB(b)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT,P_SPINB(b)::R(B)
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • B(b);
  • Actual
    • S(C);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAB(E),XB(b)
      • K(a);N_GUARD,P-FLIGHT,P_SPINB(b)::R(B)
      • B(b);::0-0
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