MESON Chess Problem Database

Problem Display
PID: 272817 (8/5N2/3p4/3p4/1p1kp2K/PP1Np1RQ/7R/4B3 w - - 0 1)

Surkov, Ruslan Albertovich

Shakhmatnaya kompozitsiya, 1998

8/5N2/3p4/3p4/1p1kp2K/PP1Np1RQ/7R/4B3

#2

9 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Bxb4?
      • 1...Kxd3
        • 2.Rd2#
      • 1...exd3
        • 2.Rg4#
        • 2.Qg4#
      • 1...e2!
    • 1.Qg4?
      • 1...Kxd3
        • 2.Qd1#
      • 1...e2
        • 2.Qg7#
      • 1...bxa3!
    • 1.Qe6?
      • 1...Kxd3
        • 2.Qxd5#
      • 1...exd3
        • 2.Qxe3#
      • 1...e2
        • 2.Qf6#
      • 1...bxa3!
  • Keys
    • 1.Qc8!
      • 1...Kxd3
        • 2.Rd2#
      • 1...bxa3
        • 2.Qc3#
      • 1...exd3
        • 2.Rg4#
      • 1...e2
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);XP(b)
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINP(a),XS(E)::R1(B)
      • Refutation
        • P(a);
    • Try
      • Q(G);P_PINP(d)
      • Vars
        • K(c);N_SPINP(d),OGATEB,P-FLIGHT,P_SPINP(a),XS(E)::QAR2(G)
        • P(a);::QAB(G)
      • Refutation
        • P(b);XP(C)
    • Try
      • Q(G);
      • Vars
        • K(c);N_GUARD,P-FLIGHT,P_SPINP(a),XS(E)::QAR2(G),XP(e)
        • P(d);OGATE,XS(E)::QAB1(G),XP(a)
        • P(a);::QAB(G)
      • Refutation
        • P(b);XP(C)
  • Actual
    • Q(G);
    • Vars
      • K(c);OGATEB,P-FLIGHT,P_SPINP(a),XS(E)::R1(B)
      • P(b);N_GUARD,XP(C)::QAB1(G)
      • P(d);OGATEB,SBLOCK,XS(E)::R(F)
      • P(a);::QAB(G)
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