MESON Chess Problem Database

Problem Display
PID: 55903 (7Q/8/1p6/8/ppB2pN1/N2Kp3/3p4/R1rkr2R w - - 0 1)

Cvijetinovic, Boro

Troll, 1993

7Q/8/1p6/8/ppB2pN1/N2Kp3/3p4/R1rkr2R

#2

7 + 9

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa1
      • 2.Qxa1#
    • 1...Rb1
      • 2.Rxb1#
    • 1...Rf1
      • 2.Rxf1#
    • 1...Rg1
      • 2.Rxg1#
    • 1...Rxh1
      • 2.Qxh1#
    • 1...e2
      • 2.Sf2#
    • 1...f3
      • 2.Sxe3#
  • Tries
    • 1.Bb5?
      • 1...Rxa1
        • 2.Qxa1#
      • 1...Rxh1
        • 2.Qxh1#
      • 1...bxa3
        • 2.Bxa4#
      • 1...Rb1
        • 2.Rxb1#
      • 1...Rf1
        • 2.Rxf1#
      • 1...Rg1
        • 2.Rxg1#
      • 1...e2
        • 2.Sf2#
      • 1...f3
        • 2.Sxe3#
      • 1...b3!
    • 1.Qh2?
      • threat
        • 2.Qe2#
      • 1...Rb1
        • 2.Rxb1#
      • 1...e2
        • 2.Sf2#
        • 2.Qxe2#
      • 1...f3
        • 2.Sxe3#
      • 1...Rxa1!
    • 1.Qh5?
      • threat
        • 2.Sf2#
        • 2.Sxe3#
      • 1...Rxh1
        • 2.Qxh1#
      • 1...Rb1
        • 2.Rxb1#
      • 1...Rf1
        • 2.Rxf1#
      • 1...Rg1
        • 2.Rxg1#
      • 1...e2
        • 2.Sf2#
      • 1...f3
        • 2.Sxe3#
      • 1...Rxa1!
  • Keys
    • 1.Sb5!
      • 1...Rxa1
        • 2.Qxa1#
      • 1...Rxh1
        • 2.Qxh1#
      • 1...Rb1
        • 2.Rxb1#
      • 1...Rf1
        • 2.Rxf1#
      • 1...Rg1
        • 2.Rxg1#
      • 1...b3
        • 2.Sc3#
      • 1...e2
        • 2.Sf2#
      • 1...a3
        • 2.Bb3#
      • 1...f3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAR(G),XR(a)
    • R(a);OGATEB::R(A),XR(a)
    • R(c);OGATEB::R(B),XR(c)
    • R(c);OGATE,XR(B)::QAR(G),XR(c)
    • P(e);N_GUARD::S(F)
    • P(h);N_GUARD::S(F),XP(e)
  • Tries
    • Try
      • B(E);
      • Vars
        • R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAR(G),XR(a)
        • R(c);OGATE,XR(B)::QAR(G),XR(c)
        • P(g);N_GUARD,XS(C)::B(E),XP(f)
        • R(a);OGATEB::R(A),XR(a)
        • R(c);OGATEB::R(B),XR(c)
        • P(e);N_GUARD::S(F)
        • P(h);N_GUARD::S(F),XP(e)
      • Refutation
        • P(g);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);OGATEB::R(A),XR(a)
        • P(h);N_GUARD::S(F),XP(e)
      • Refutation
        • R(a);N_SPINR(a),P_SPINR(c),XR(A)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATE,XR(B)::QAR(G),XR(c)
        • R(a);OGATEB::R(A),XR(a)
        • R(c);OGATEB::R(B),XR(c)
        • P(e);::S(F)
        • P(h);::S(F),XP(e)
      • Refutation
        • R(a);N_SPINR(a),P_SPINR(c),XR(A)
  • Actual
    • S(C);
    • Vars
      • R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAR(G),XR(a)
      • R(c);OGATE,XR(B)::QAR(G),XR(c)
      • R(a);OGATEB::R(A),XR(a)
      • R(c);OGATEB::R(B),XR(c)
      • P(g);N_GUARD::S(C)
      • P(e);N_GUARD::S(F)
      • P(f);N_GUARD::B(E)
      • P(h);N_GUARD::S(F),XP(e)
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