MESON Chess Problem Database

Problem Display
PID: 18974 (8/8/2K5/8/8/1kN5/1pN5/1R2Q3 w - - 0 1)

Saks, Oleg Pavlovich

Caissa, 1992

8/8/2K5/8/8/1kN5/1pN5/1R2Q3

#2

5 + 2

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • 1...Ka2
        • 2.Rxb2#
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxc2!
    • 1.Sa2?
      • 1...Kxc2
        • 2.Qd1#
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxa2!
    • 1.Se2?
      • 1...Kxc2
        • 2.Qd1#
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka2!
    • 1.Se4?
      • 1...Kxc2
        • 2.Qd1#
      • 1...Ka4
        • 2.Sc5#
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka2!
    • 1.Sb5?
      • 1...Kxc2
        • 2.Qd1#
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka2!
    • 1.Sd5?
      • 1...Kxc2
        • 2.Qd1#
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka2!
  • Keys
    • 1.Sa4!
      • 1...Ka2
        • 2.Rxb2#
      • 1...Kxc2
        • 2.Qd1#
      • 1...Kxa4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::R1(A),XP(a)
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT,XS(D)
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT::R1(A),XP(a)
      • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
      • K(b);N_SPINP(a),S_FLIGHT,XS(D)::QAR1(B)
      • K(b);N_SPINP(a),S_FLIGHT::QAR1(B)
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