MESON Chess Problem Database

Problem Display
PID: 107149 (8/5p2/4ppN1/2K1B1np/1pp1k2N/2p3Qn/Rr3p1r/4bB2 w - - 0 1)

Labai, Zoltan

Freie Presse, 1984

8/5p2/4ppN1/2K1B1np/1pp1k2N/2p3Qn/Rr3p1r/4bB2

#2

7 + 14

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Re2#
    • 1...Re2
      • 2.Rxe2#
    • 1...Rb3
      • 2.Re2#
    • 1...Sg1
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sh7
      • 2.Qf3#
    • 1...fxe5
      • 2.Qxe5#
  • Tries
    • 1.Kxc4?
      • threat
        • 2.Bd3#
        • 2.Qd3#
      • 1...fxg6
        • 2.Bd3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Re2
        • 2.Rxe2#
        • 2.Qd3#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Rd2!
    • 1.Bg2+?
      • 1...Sf3
        • 2.Qxf3#
      • 1...Rxg2!
    • 1.Bd4?
      • threat
        • 2.Qe3#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Bd2!
    • 1.Bf4?
      • threat
        • 2.Qe3#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Bd2!
    • 1.Qg4+?
      • 1...Ke3
        • 2.Qd4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...hxg4!
  • Keys
    • 1.Bxf6!
      • threat
        • 2.Qe5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sf4
        • 2.Qxf4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(b);OGATE::R(B)
    • R(b);OGATE::R(B),XR(b)
    • S(f);N_GUARD::QAR1(C)
    • S(f);N_GUARD::QAR1(C),XS(f)
    • S(j);N_GUARD::QAB1(C),XS(j)
    • S(j);N_GUARD::QAB1(C)
    • P(m);OGATE,XB(F)::QAR1(C),XP(m)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • P(n);XS(G)::B(A)
        • S(j);N_GUARD::QAB1(C),XS(j)
        • S(f);N_GUARD::QAR1(C),XS(f)
      • Refutation
        • R(b);
    • Try
      • B(A);CHECK
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::QAB1(C),XS(j)
      • Refutation
        • R(d);XB(A)
    • Try
      • B(F);
      • Threat
        • QAR1(C)
      • Vars
        • R(b);OGATE::R(B),XR(b)
        • S(j);N_GUARD::QAB1(C),XS(j)
      • Refutation
        • B(a);
    • Try
      • B(F);
      • Threat
        • QAR1(C)
      • Vars
        • S(f);OGATE,XB(F)::QAR1(C),XS(f)
        • R(b);OGATE::R(B),XR(b)
        • S(j);N_GUARD::QAB1(C),XS(j)
      • Refutation
        • B(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(i);OGATE,P-FLIGHT::QAB1(C)
        • S(f);N_GUARD,P_SPINS(f)::QAR1(C),XS(f)
      • Refutation
        • P(k);XQ(C)
  • Actual
    • B(F);XP(m)
    • Threat
      • QAR1(C)
    • Vars
      • S(j);N_GUARD::QAB1(C),XS(j)
      • R(b);OGATE::R(B),XR(b)
      • S(f);N_GUARD::QAR1(C),XS(f)
      • P(l);::QAR1(C),XP(l)
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