MESON Chess Problem Database

Problem Display
PID: 75378 (4b3/2p5/3P1N2/Kpk5/6R1/3p4/4pP1B/4n1QB w - - 0 1)

Zirkwitz, Thorsten

The Problemist, 2007

4b3/2p5/3P1N2/Kpk5/6R1/3p4/4pP1B/4n1QB

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bh5
      • 2.Sd7#
    • 1...Bc6
      • 2.f3#
    • 1...Bg6
      • 2.Sd7#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Bf7
      • 2.Sd7#
    • 1...Sg2
      • 2.Qc1#
    • 1...Sf3
      • 2.Qc1#
    • 1...c6
      • 2.f3#
  • Tries
    • 1.Bd5?
      • threat
        • 2.f3#
      • 1...Sg2
        • 2.Qc1#
      • 1...Sf3
        • 2.Qc1#
      • 1...Sc2!
    • 1.Bb7?
      • threat
        • 2.f3#
      • 1...Sg2
        • 2.Qc1#
      • 1...Sf3
        • 2.Qc1#
      • 1...Sc2!
    • 1.Ba8?
      • threat
        • 2.f3#
      • 1...Sg2
        • 2.Qc1#
      • 1...Sf3
        • 2.Qc1#
      • 1...Sc2!
    • 1.Rh4?
      • threat
        • 2.Qg5#
      • 1...Sg2
        • 2.Qc1#
      • 1...Sf3
        • 2.Qc1#
      • 1...Bc6
        • 2.f3#
      • 1...Bg6
        • 2.Sd7#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Bf7
        • 2.Sd7#
      • 1...cxd6!
    • 1.Qxe1?
      • threat
        • 2.Qc3#
        • 2.Qb4#
        • 2.Qc1#
      • 1...Bf7
        • 2.Sd7#
        • 2.Qb4#
      • 1...b4
        • 2.Qxb4#
        • 2.Qc1#
      • 1...d2!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Qg5#
      • 1...cxd6
        • 2.f4#
      • 1...Sg2
        • 2.Qc1#
      • 1...Sf3
        • 2.Qc1#
      • 1...Bc6
        • 2.f3#
      • 1...Bg6
        • 2.Sd7#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Bf7
        • 2.Sd7#

This is a version

Version of CS Kipping, Manchester City News, 1923

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::S(H)
    • B(g);SBLOCK::QAB(A)+P(C)
    • B(g);N_GUARD::S(H),XB(g)
    • S(a);OGATE::QAR(A)
    • P(f);SBLOCK::QAB(A)+P(C)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAB(A)+P(C)
      • Vars
        • S(a);OGATE::QAR(A)
      • Refutation
        • S(a);
    • Try
      • B(B);
      • Threat
        • QAB(A)+P(C)
      • Vars
        • S(a);OGATE::QAR(A)
      • Refutation
        • S(a);
    • Try
      • B(B);
      • Threat
        • QAB(A)+P(C)
      • Vars
        • S(a);OGATE::QAR(A)
      • Refutation
        • S(a);
    • Try
      • R(E);
      • Threat
        • QAR(A)
      • Vars
        • S(a);OGATE::QAR(A)
        • B(g);SBLOCK::QAB(A)+P(C)
        • B(g);N_GUARD::S(H)
        • B(g);N_GUARD::S(H),XB(g)
      • Refutation
        • P(f);XP(G)
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);
  • Actual
    • R(E);
    • Threat
      • QAR(A)
    • Vars
      • P(f);SBLOCK,XP(G)::QAB(A)+P(C)
      • S(a);OGATE::QAR(A)
      • B(g);SBLOCK::QAB(A)+P(C)
      • B(g);N_GUARD::S(H)
      • B(g);N_GUARD::S(H),XB(g)
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