MESON Chess Problem Database

Problem Display
PID: 258865 (4B1QK/4p2R/1p1B1N2/bp1Pp3/2k2p2/n1p2N1n/P1P5/1R3b1r w - - 0 1)

Gockel, Hubert

3rd Prize, Schach, 2015

4B1QK/4p2R/1p1B1N2/bp1Pp3/2k2p2/n1p2N1n/P1P5/1R3b1r

#2

11 + 12

45 Schach 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.Rxb4#
    • 1...Sxc2
      • 2.Bxb5#
    • 1...exd6
      • 2.Rc7#
    • 1...exf6
      • 2.Rc7#
    • 1...e6
      • 2.Rc7#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Sgxe5#
      • 1...exd6
        • 2.Rc7#
      • 1...e4
        • 2.Sge5#
      • 1...e6!
    • 1.Bg6?
      • threat
        • 2.Qc8#
      • 1...exf6
        • 2.Rc7#
      • 1...Bb4
        • 2.Rxb4#
      • 1...b4!
    • 1.Bd7?
      • threat
        • 2.Qc8#
      • 1...Sxc2
        • 2.Bxb5#
      • 1...Bb4
        • 2.Rxb4#
      • 1...exf6!
    • 1.Rd1?
      • threat
        • 2.Sxe5#
      • 1...exf6
        • 2.Rc7#
      • 1...Bd3
        • 2.cxd3#
      • 1...e4
        • 2.Se5#
        • 2.Rd4#
      • 1...exd6!
    • 1.Qg4?
      • threat
        • 2.Qc8#
      • 1...Sxc2
        • 2.Bxb5#
      • 1...Bb4
        • 2.Rxb4#
      • 1...e6
        • 2.Rc7#
      • 1...exf6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qc8#
      • 1...Sxc2
        • 2.Bxb5#
      • 1...exf6
        • 2.Rc7#
      • 1...Bb4
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • B(h);N_GUARD::R1(A),XB(h)
    • S(c);N_GUARD,XP(C)::B(I),XP(i)
    • P(l);OGATE,XB(F)::R(H)
    • P(l);OGATE,XS(G)::R(H)
    • P(l);OGATE::R(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G),XP(j)
      • Vars
        • P(l);OGATE,XB(F)::R(H)
        • P(j);::S(G)
      • Refutation
        • P(l);
    • Try
      • B(I);
      • Threat
        • QAR(J)
      • Vars
        • P(l);OGATE,XS(G)::R(H)
        • B(h);N_GUARD::R1(A),XB(h)
      • Refutation
        • P(i);
    • Try
      • B(I);
      • Threat
        • QAR(J)
      • Vars
        • S(c);N_GUARD,XP(C)::B(I),XP(i)
        • B(h);N_GUARD::R1(A),XB(h)
      • Refutation
        • P(l);XS(G)
    • Try
      • R(A);
      • Threat
        • S(D),XP(j)
      • Vars
        • P(l);OGATE,XS(G)::R(H)
        • B(a);OGATE::P(C),XB(a)
      • Refutation
        • P(l);XB(F)
    • Try
      • Q(J);P_PINP(g)
      • Threat
        • QAR(J)
      • Vars
        • S(c);N_GUARD,XP(C)::B(I),XP(i)
        • B(h);N_GUARD::R1(A),XB(h)
        • P(l);OGATE::R(H)
      • Refutation
        • P(l);XS(G)
  • Actual
    • Q(J);
    • Threat
      • QAR(J)
    • Vars
      • S(c);N_GUARD,XP(C)::B(I),XP(i)
      • P(l);OGATE,XS(G)::R(H)
      • B(h);N_GUARD::R1(A),XB(h)
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