MESON Chess Problem Database

Problem Display
PID: 261083 (6r1/7p/4PP2/1Q4NK/3ppkp1/R7/1B1Pp3/bB3b1N w - - 0 1)

Witt, Andreas

2nd HM., Neue Zurcher Zeitung, 2013

6r1/7p/4PP2/1Q4NK/3ppkp1/R7/1B1Pp3/bB3b1N

#2

10 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5+
      • 2.Qxg5#
    • 1...d3
      • 2.Qe5#
    • 1...e3
      • 2.Qf5#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Qf5#
      • 1...Rxg5+
        • 2.Qxg5#
      • 1...d3
        • 2.Qe5#
      • 1...e3!
    • 1.Sf7?
      • threat
        • 2.Qe5#
      • 1...Rg5+
        • 2.Qxg5#
      • 1...e3
        • 2.Qf5#
      • 1...d3!
    • 1.Bxd4?
      • threat
        • 2.Be3#
        • 2.Qe5#
      • 1...Rxg5+
        • 2.Qxg5#
      • 1...e1Q
        • 2.Qe5#
      • 1...e1R
        • 2.Qe5#
      • 1...e3
        • 2.Bxe3#
        • 2.Qe5#
        • 2.Qf5#
        • 2.dxe3#
      • 1...Bxd4!
    • 1.Rf3+?
      • 1...exf3
        • 2.Qf5#
      • 1...gxf3!
    • 1.Rg3?
      • threat
        • 2.Rxg4#
      • 1...Rxg5+
        • 2.Qxg5#
      • 1...Bh3!
  • Keys
    • 1.e7!
      • threat
        • 2.Se6#
      • 1...Rxg5+
        • 2.Qxg5#
      • 1...d3
        • 2.Qe5#
      • 1...e3
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(i);CHECK,OGATE,XS(G)::QAB1(F),XR(i)
    • P(d);::QAB1(F)
    • P(e);::QAR1(F)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(F)
      • Vars
        • R(i);CHECK,OGATE,XS(G)::QAB1(F),XR(i)
        • P(d);::QAB1(F)
      • Refutation
        • P(e);
    • Try
      • S(G);
      • Threat
        • QAB1(F)
      • Vars
        • R(i);CHECK,N_GUARD::QAB1(F),XR(i)
        • P(e);::QAR1(F)
      • Refutation
        • P(d);
    • Try
      • B(C);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(i);CHECK,OGATE,XS(G)::QAB1(F),XR(i)
        • P(c);::QAB1(F)
      • Refutation
        • B(a);XB(C)
    • Try
      • R(E);CHECK
      • Vars
        • P(e);XR(E)::QAR1(F)
      • Refutation
        • P(g);XR(E)
    • Try
      • R(E);
      • Threat
        • R1(E),XP(g)
      • Vars
        • R(i);CHECK,OGATE,XS(G)::QAB1(F),XR(i)
      • Refutation
        • B(b);
  • Actual
    • P(I);
    • Threat
      • S(G)
    • Vars
      • R(i);CHECK,OGATE,XS(G)::QAB1(F),XR(i)
      • P(d);::QAB1(F)
      • P(e);::QAR1(F)
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Developed and maintained by Brian Stephenson.
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