MESON Chess Problem Database

Problem Display
PID: 93909 (bB6/2r5/B5R1/brpk3P/1pR2p2/1NQ5/2K5/8 w - - 0 1)

Zaborowski, Boleslav

Sachove umeni (Ceskoslovensky sach), 1953

bB6/2r5/B5R1/brpk3P/1pR2p2/1NQ5/2K5/8

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qd3#
    • 1...Ra7
      • 2.Rd6#
      • 2.Qd3#
    • 1...Rb7
      • 2.Rd6#
      • 2.Qd3#
    • 1...Rd7
      • 2.Qd3#
    • 1...Re7
      • 2.Rd6#
      • 2.Qd3#
    • 1...Rf7
      • 2.Rd6#
      • 2.Qd3#
    • 1...Rg7
      • 2.Rd6#
      • 2.Qd3#
    • 1...Rh7
      • 2.Rd6#
      • 2.Qd3#
    • 1...Rc8
      • 2.Rd6#
      • 2.Qd3#
  • Tries
    • 1.Qd2+?
      • 1...Kxc4
        • 2.Sxa5#
        • 2.Qd3#
      • 1...Ke5!
    • 1.Qe5+?
      • 1...Kxc4
        • 2.Sd2#
        • 2.Sxa5#
      • 1...Kxe5!
    • 1.Qe3?
      • threat
        • 2.Qe4#
        • 2.Qe6#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Rb6
        • 2.Qe4#
      • 1...Rc6
        • 2.Qd3#
        • 2.Qe4#
      • 1...Re7
        • 2.Qd3#
      • 1...fxe3!
    • 1.Qf3+?
      • 1...Kxc4
        • 2.Qd3#
      • 1...Ke5!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qe6#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Ke5
        • 2.Qe6#
      • 1...Rb6
        • 2.Qf5#
      • 1...Rc6
        • 2.Qd3#
      • 1...Re7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(g);::QAR2(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(g)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(g),XQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);P_SPINR(d),S_FLIGHT,XR(D)::QAB1(C)
        • R(d);::QAB1(C)
        • R(g);::QAR2(C)
      • Refutation
        • P(b);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);P_SPINR(d),S_FLIGHT,XR(D)::QAB1(C)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(g)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(f);P_SPINR(d),S_FLIGHT,XR(D)::QAB1(C)
      • K(f);P-FLIGHT,P_SPINR(g)::QAR1(C)
      • R(d);::QAR2(C)
      • R(g);::QAR2(C)
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