MESON Chess Problem Database

Problem Display
PID: 98387 (8/8/8/4K2N/6kN/7n/3Q3R/8 w - - 0 1)

Murarasu, Ion

Problemas, 1994

8/8/8/4K2N/6kN/7n/3Q3R/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • 1...Kf3
        • 2.Qd1#
        • 2.Qe2#
        • 2.Qg2#
      • 1...Sg1
        • 2.Qf4#
        • 2.Qg2#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
        • 2.Qg2#
      • 1...Kxh5!
    • 1.Sg6?
      • 1...Kf3
        • 2.Qe2#
      • 1...Sg1
        • 2.Qf4#
        • 2.Qg2#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
        • 2.Qg2#
      • 1...Kxh5!
    • 1.Sg3?
      • 1...Kxh4
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Kxg3!
    • 1.Sf6+?
      • 1...Kxh4
        • 2.Qf4#
      • 1...Kg3!
    • 1.Sg7?
      • 1...Kxh4
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
        • 2.Qg2#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
        • 2.Qg2#
      • 1...Kg3!
    • 1.Qg2+?
      • 1...Kxh4
        • 2.Rxh3#
      • 1...Kxh5!
  • Keys
    • 1.Sf3!
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kxh5
        • 2.Qg5#
      • 1...Sg1
        • 2.Qf4#
        • 2.Qg2#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • K(b);P_SPINS(a),S_FLIGHT,XS(E)
    • Try
      • S(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • K(b);P_SPINS(a),S_FLIGHT,XS(E)
    • Try
      • S(E);
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a),XS(C)::QAR2(A)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • K(b);P-FLIGHT,XS(E)
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a),XS(C)::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a),XS(C)::QAR2(A)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a),XS(C)::R1(B),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
  • Actual
    • S(C);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • K(b);P_SPINS(a),S_FLIGHT,XS(E)::QAR1(A)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
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