MESON Chess Problem Database

Problem Display
PID: 99013 (nK1B4/1p2N1p1/4P1pb/1N1Bk3/1p4P1/6Rr/4nQ2/5r2 w - - 0 1)

Bakcsi, Gyorgy

Magyar Sakkelet, 1981

nK1B4/1p2N1p1/4P1pb/1N1Bk3/1p4P1/6Rr/4nQ2/5r2

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qd4#
    • 1...Sg1
      • 2.Qd4#
    • 1...Sc3
      • 2.Qd4#
    • 1...Sxg3
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sf4
      • 2.Qd4#
      • 2.Qb2#
    • 1...Sb6
      • 2.Bc7#
    • 1...Sc7
      • 2.Bxc7#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Sxg6#
      • 1...Sf4
        • 2.Qd4#
        • 2.Qb2#
      • 1...Sd4
        • 2.Qxd4#
      • 1...g5
        • 2.Sg6#
      • 1...Rxd3!
    • 1.Qe3+?
      • 1...Kf6
        • 2.Sf5#
        • 2.Sc6#
        • 2.Sc8#
        • 2.Sg8#
      • 1...Bxe3!
    • 1.Qxe2+?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kf6
        • 2.Sf5#
        • 2.Sc6#
        • 2.Sc8#
        • 2.Sg8#
      • 1...Be3!
    • 1.Qg2?
      • threat
        • 2.Sxg6#
      • 1...Kf4
        • 2.Sxg6#
      • 1...Kf6
        • 2.Sc6#
      • 1...Rf6
        • 2.Qe4#
      • 1...Sf4
        • 2.Qb2#
      • 1...g5
        • 2.Sg6#
      • 1...Rf3!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sxg6#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kf6
        • 2.Sc6#
      • 1...Rf6
        • 2.Qd6#
      • 1...Sf4
        • 2.Qd4#
      • 1...g5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • S(b);N_GUARD::QAB1(A)
    • S(b);N_GUARD,XR(B)::QAB1(A)
    • S(b);N_GUARD::QAB1(A),XS(b)
    • S(j);N_GUARD::B(I)
    • S(j);N_GUARD::B(I),XS(j)
  • Tries
    • Try
      • R(B);
      • Threat
        • S(G),XP(f)
      • Vars
        • S(b);N_GUARD::QAB1(A),XS(b)
        • P(f);::S(G)
      • Refutation
        • R(c);XR(B)
    • Try
      • Q(A);CHECK
      • Refutation
        • B(g);XQ(A)
    • Try
      • Q(A);CHECK,XS(b)
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • Q(A);
      • Threat
        • S(G),XP(f)
      • Vars
        • K(e);S_FLIGHT::S(G),XP(f)
        • K(e);S_FLIGHT::B(I)+S(G)
        • R(a);SBLOCK::QAR1(A)
        • S(b);OGATE,SBLOCK::QAB(A)
        • P(f);::S(G)
      • Refutation
        • R(a);
  • Actual
    • Q(A);
    • Threat
      • S(G),XP(f)
    • Vars
      • K(e);S_FLIGHT::QAB1(A)
      • K(e);S_FLIGHT::B(I)+S(G)
      • R(a);SBLOCK::QAB1(A)
      • S(b);N_GUARD::QAB1(A)
      • P(f);::S(G)
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