MESON Chess Problem Database

Problem Display
PID: 100479 (b7/1q1nb3/p6r/Q3R2P/B1kB2NR/6r1/1PN1PPp1/3n2K1 w - - 0 1)

Bakcsi, Gyorgy

Israel Ring Ty., 1961

b7/1q1nb3/p6r/Q3R2P/B1kB2NR/6r1/1PN1PPp1/3n2K1

#2

12 + 10

102 Probleemblad 1974
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qd5#
    • 1...Se3
      • 2.Qc3#
    • 1...Sxe5
      • 2.Sxe5#
  • Tries
    • 1.Sce3+?
      • 1...Kxd4
        • 2.Qd2#
      • 1...Sxe3
        • 2.Qc3#
      • 1...Rxe3!
    • 1.Sge3+?
      • 1...Sxe3
        • 2.Qc3#
      • 1...Rxe3!
    • 1.Bc3?
      • threat
        • 2.Sge3#
      • 1...Bxh4
        • 2.Sa3#
      • 1...Qe4
        • 2.b3#
      • 1...Re3
        • 2.Sgxe3#
      • 1...Se3
        • 2.Sgxe3#
      • 1...Rxg4!
    • 1.Bc5?
      • threat
        • 2.Sge3#
      • 1...Rxg4
        • 2.Sa3#
      • 1...Qe4
        • 2.Qb4#
      • 1...Re3
        • 2.Sgxe3#
      • 1...Se3
        • 2.Sa3#
        • 2.Sgxe3#
        • 2.Qc3#
      • 1...Bxh4!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Sge3#
      • 1...Rxg4
        • 2.b3#
      • 1...Bxh4
        • 2.Qb4#
      • 1...Qe4
        • 2.Qxa6#
      • 1...Re3
        • 2.Sgxe3#
      • 1...Se3
        • 2.Sgxe3#
        • 2.Qc3#
        • 2.b3#

There are these versions: 139564

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(f);S_CUTQ(g)::QAB1(J)
    • S(a);N_GUARD,S_CUTR(c)::QAR1(J)
    • S(h);XR(K)::S(H),XS(h)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT,XB(G)::QAR2(J)
        • S(a);XS(C)::QAR1(J)
      • Refutation
        • R(c);XS(C)
    • Try
      • S(H);CHECK
      • Vars
        • S(a);XS(H)::QAR1(J)
      • Refutation
        • R(c);XS(H)
    • Try
      • B(G);
      • Threat
        • R(I)+S(H),DCHECK
      • Vars
        • B(i);N_GUARD,XR(I)::S(C)
        • Q(g);N_GUARD::P(B)
        • R(c);::R(I)+S(H),DCHECK,XR(c)
        • S(a);::R(I)+S(H),DCHECK,XS(a)
      • Refutation
        • R(c);P_SPINR(c),XS(H)
    • Try
      • B(G);
      • Threat
        • R(I)+S(H),DCHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c),XS(H)::S(C)
        • Q(g);N_GUARD::QAR1(J)
        • R(c);::R(I)+S(H),DCHECK,XR(c)
      • Refutation
        • B(i);XR(I)
  • Actual
    • B(G);
    • Threat
      • R(I)+S(H),DCHECK
    • Vars
      • R(c);N_GUARD,P_SPINR(c),XS(H)::P(B)
      • B(i);N_GUARD,XR(I)::QAR1(J)
      • Q(g);N_GUARD::QAB(J),XP(e)
      • R(c);::R(I)+S(H),DCHECK,XR(c)
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