MESON Chess Problem Database

Problem Display
PID: 233438 (1r6/5QR1/8/4pnB1/2n1k2N/2Pr1N1K/4bPP1/1B6 w - - 0 1)

Kupper, Josef

Freie Presse, 2012

1r6/5QR1/8/4pnB1/2n1k2N/2Pr1N1K/4bPP1/1B6

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Qxb7#
    • 1...Ra8
      • 2.Qb7#
    • 1...Re8
      • 2.Qb7#
    • 1...Rf8
      • 2.Qb7#
    • 1...Rg8
      • 2.Qb7#
    • 1...Rh8
      • 2.Qb7#
    • 1...Bxf3
      • 2.gxf3#
    • 1...Sce3
      • 2.Sd2#
    • 1...Sg3
      • 2.Qxc4#
    • 1...Sh6
      • 2.Qxc4#
    • 1...Se7
      • 2.Qxc4#
    • 1...Sxg7
      • 2.Qxc4#
  • Tries
    • 1.Bc1?
      • threat
        • 2.Rg4#
      • 1...Bxf3
        • 2.gxf3#
      • 1...Sxg7
        • 2.Qxc4#
      • 1...Rg8
        • 2.Qb7#
      • 1...Sfe3
        • 2.Sg5#
      • 1...Sh6
        • 2.Qxc4#
      • 1...Sce3!
    • 1.Bd2?
      • threat
        • 2.Rg4#
      • 1...Bxf3
        • 2.gxf3#
      • 1...Sxg7
        • 2.Qxc4#
      • 1...Rg8
        • 2.Qb7#
      • 1...Sfe3
        • 2.Sg5#
      • 1...Sh6
        • 2.Qxc4#
      • 1...Sce3!
    • 1.Be3?
      • threat
        • 2.Sg5#
        • 2.Rg4#
      • 1...Bxf3
        • 2.gxf3#
      • 1...Sfxe3
        • 2.Sg5#
      • 1...Sxg7
        • 2.Sg5#
        • 2.Qxc4#
      • 1...Rg8
        • 2.Sg5#
        • 2.Qb7#
      • 1...Sh6
        • 2.Sg5#
        • 2.Qxc4#
      • 1...Scxe3!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Rg4#
      • 1...Bxf3
        • 2.gxf3#
      • 1...Sxh6
        • 2.Qxc4#
      • 1...Sxg7
        • 2.Qxc4#
      • 1...Rg8
        • 2.Qb7#
      • 1...Sce3
        • 2.Sd2#
      • 1...Sfe3
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(g);N_GUARD::QAB(I),XR(g)
    • R(g);N_GUARD::QAB(I)
    • B(a);OGATE,XS(E)::P(C),XB(a)
    • S(c);N_PINS(E)::S(E)
    • S(f);N_GUARD,N_PINS(E)::QAR2(I),XS(c)
    • S(f);N_GUARD::QAR2(I),XS(c)
    • S(f);N_GUARD,XR(J)::QAR2(I),XS(c)
  • Tries
    • Try
      • B(H);
      • Threat
        • R(J)
      • Vars
        • B(a);OGATE,XS(E)::P(C),XB(a)
        • S(f);N_GUARD,XR(J)::QAR2(I),XS(c)
        • R(g);N_GUARD::QAB(I)
        • S(f);N_PINS(E)::S(E)
        • S(f);N_GUARD::QAR2(I),XS(c)
      • Refutation
        • S(c);N_PINS(E)
    • Try
      • B(H);
      • Threat
        • R(J)
      • Vars
        • B(a);OGATE,XS(E)::P(C),XB(a)
        • S(f);N_GUARD,XR(J)::QAR2(I),XS(c)
        • R(g);N_GUARD::QAB(I)
        • S(f);N_PINS(E)::S(E)
        • S(f);N_GUARD::QAR2(I),XS(c)
      • Refutation
        • S(c);N_PINS(E)
    • Try
      • B(H);N_SPINS(E)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);OGATE,XS(E)::P(C),XB(a)
        • S(f);XB(H)::S(E)
      • Refutation
        • S(c);XB(H)
  • Actual
    • B(H);
    • Threat
      • R(J)
    • Vars
      • B(a);OGATE,XS(E)::P(C),XB(a)
      • S(f);N_GUARD,XB(H)::QAR2(I),XS(c)
      • S(f);N_GUARD,XR(J)::QAR2(I),XS(c)
      • R(g);N_GUARD::QAB(I)
      • S(c);N_PINS(E)::S(E)
      • S(f);N_PINS(E)::S(E)
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