MESON Chess Problem Database

Problem Display
PID: 110340 (8/1n6/b7/Pk6/p2P2Q1/p1Rp4/K7/4B3 w - - 0 1)

Mlynka, Karol

Sachove umeni (Ceskoslovensky sach), 1986

8/1n6/b7/Pk6/p2P2Q1/p1Rp4/K7/4B3

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Rxc5#
    • 1...Sd6
      • 2.Rc5#
    • 1...Sd8
      • 2.Rc5#
  • Tries
    • 1.Bd2?
      • 1...Kb4
        • 2.Rc5#
      • 1...Kxa5
        • 2.Rb3#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd6
        • 2.Rc5#
      • 1...Sd8
        • 2.Rc5#
      • 1...Sxa5!
    • 1.Qf5+?
      • 1...Sc5
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...Kb4!
    • 1.Qh5+?
      • 1...Sc5
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...Kb4!
    • 1.Qg5+?
      • 1...Sc5
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...Kb4!
    • 1.Qg6?
      • threat
        • 2.Qb6#
      • 1...Kxa5
        • 2.Rc5#
      • 1...Sxa5
        • 2.Rc5#
      • 1...Sd6
        • 2.Rc5#
      • 1...Kb4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qb6#
      • 1...Kb4
        • 2.Rb3#
      • 1...Kxa5
        • 2.Rc5#
      • 1...Sxa5
        • 2.Rc5#
      • 1...Sd6
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::R1(C),XS(f)
    • S(f);N_GUARD::R1(C)
  • Tries
    • Try
      • B(A);
      • Vars
        • K(d);P-FLIGHT::B(A)+R(C)
        • K(d);P-FLIGHT,XP(F)::B(A)+R(C)
        • S(f);N_GUARD::R1(C),XS(f)
        • S(f);N_GUARD::R1(C)
      • Refutation
        • S(f);XP(F)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(d);P-FLIGHT,XP(F)::B(A)+R(C),DCHECK
        • S(f);N_GUARD,XP(F)::R1(C)
        • S(f);N_GUARD::R1(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • K(d);P-FLIGHT::B(A)+R(C),DCHECK
      • K(d);P-FLIGHT,XP(F)::B(A)+R(C),DCHECK
      • S(f);N_GUARD,XP(F)::R1(C)
      • S(f);N_GUARD::R1(C)
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