MESON Chess Problem Database

Problem Display
PID: 143372 (2Q1n3/3ppB2/Rp1N4/1pb1kP1N/1P2P3/1P1K4/8/8 w - - 0 1)

Ott, Markus Johannes

Die Schwalbe, 1982

2Q1n3/3ppB2/Rp1N4/1pb1kP1N/1P2P3/1P1K4/8/8

#2

10 + 7

3195 idee & form 1983
328 Schweizerische Schachzeitung 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qxc5#
    • 1...Bxd6
      • 2.Qc3#
    • 1...Sxd6
      • 2.Qh8#
    • 1...exd6
      • 2.Qxe8#
  • Tries
    • 1.Bc4?
      • threat
        • 2.Sf7#
      • 1...bxc4+
        • 2.Sxc4#
      • 1...Kxd6
        • 2.Qxc5#
      • 1...Sxd6
        • 2.Qh8#
      • 1...exd6
        • 2.Qxe8#
      • 1...Bxd6!
    • 1.Bd5?
      • threat
        • 2.Sf7#
      • 1...Bxd6
        • 2.Qc3#
      • 1...Sxd6
        • 2.Qh8#
      • 1...exd6
        • 2.Qxe8#
      • 1...Kxd6!
    • 1.Be6?
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Qxc5#
      • 1...Bxd6
        • 2.Qc3#
      • 1...Sxd6
        • 2.Qh8#
      • 1...exd6!
    • 1.Bxe8?
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Qxc5#
      • 1...Bxd6
        • 2.Qc3#
      • 1...exd6!
    • 1.Bg8?
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Qxc5#
      • 1...Bxd6
        • 2.Qc3#
      • 1...exd6
        • 2.Qxe8#
      • 1...Sxd6!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Qxc5#
      • 1...Bxd6
        • 2.Qc3#
      • 1...Sxd6
        • 2.Qh8#
      • 1...exd6
        • 2.Qxe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINP(d),S_FLIGHT,XS(H)::QAB1(J),XB(b)
    • B(b);OGATE,SBLOCK,XS(H)::QAB(J)
    • S(g);OGATE,SBLOCK,XS(H)::QAB(J)
    • P(f);OGATEB,SBLOCK,XS(H)::QAR(J),XS(g)
  • Tries
    • Try
      • B(I);
      • Threat
        • S(H)
      • Vars
        • P(a);CHECK,XB(I)::S(H),XP(a)
        • K(c);P_SPINP(d),S_FLIGHT,XS(H)::QAB1(J),XB(b)
        • S(g);OGATE,SBLOCK,XS(H)::QAB(J)
        • P(f);OGATEB,SBLOCK,XS(H)::QAR(J),XS(g)
      • Refutation
        • B(b);XS(H)
    • Try
      • B(I);
      • Threat
        • S(H)
      • Vars
        • B(b);OGATE,SBLOCK,XS(H)::QAB(J)
        • S(g);OGATE,SBLOCK,XS(H)::QAB(J)
        • P(f);OGATEB,SBLOCK,XS(H)::QAR(J),XS(g)
      • Refutation
        • K(c);P_SPINP(d),S_FLIGHT,XS(H)
    • Try
      • B(I);
      • Threat
        • S(H)
      • Vars
        • K(c);P_SPINP(d),S_FLIGHT,XS(H)::QAB1(J),XB(b)
        • B(b);OGATE,SBLOCK,XS(H)::QAB(J)
        • S(g);OGATE,SBLOCK,XS(H)::QAB(J)
      • Refutation
        • P(f);XS(H)
    • Try
      • B(I);XS(g)
      • Threat
        • S(H)
      • Vars
        • K(c);P_SPINP(d),S_FLIGHT,XS(H)::QAB1(J),XB(b)
        • B(b);OGATE,SBLOCK,XS(H)::QAB(J)
      • Refutation
        • P(f);XS(H)
    • Try
      • B(I);
      • Threat
        • S(H)
      • Vars
        • K(c);P_SPINP(d),S_FLIGHT,XS(H)::QAB1(J),XB(b)
        • B(b);OGATE,SBLOCK,XS(H)::QAB(J)
        • P(f);OGATEB,SBLOCK,XS(H)::QAR(J),XS(g)
      • Refutation
        • S(g);XS(H)
  • Actual
    • B(I);
    • Threat
      • S(H)
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT,XS(H)::QAB1(J),XB(b)
      • B(b);OGATE,SBLOCK,XS(H)::QAB(J)
      • S(g);OGATE,SBLOCK,XS(H)::QAB(J)
      • P(f);OGATEB,SBLOCK,XS(H)::QAR(J),XS(g)
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