MESON Chess Problem Database

Problem Display
PID: 56323 (1b6/n3Q1pp/1p2P1p1/3Nk3/1n1N2P1/3P3K/1qpPP3/4RRBB w - - 0 1)

Bruch, Wieland

The Problemist, 2004

1b6/n3Q1pp/1p2P1p1/3Nk3/1n1N2P1/3P3K/1qpPP3/4RRBB

#2

13 + 10

56 The Problemist 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qg5#
      • 2.Qxg7#
    • 1...Bc7
      • 2.Qxc7#
    • 1...Sxd3
      • 2.exd3#
    • 1...g5
      • 2.Rf5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Bh2#
      • 1...Sxd3
        • 2.exd3#
      • 1...gxf5
        • 2.Rxf5#
      • 1...Qd4
        • 2.Bxd4#
      • 1...Sxd5!
    • 1.Sxb6?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...c1Q
        • 2.Sd7#
      • 1...c1R
        • 2.Sd7#
      • 1...Qc3
        • 2.Sd7#
      • 1...Qa2
        • 2.Sd7#
      • 1...Qb3
        • 2.Sd7#
      • 1...Qxd4!
    • 1.Qd7?
      • threat
        • 2.Sf3#
      • 1...Sxd3
        • 2.exd3#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Bd6
        • 2.Qxg7#
      • 1...Qxd4!
    • 1.e3?
      • threat
        • 2.Bh2#
      • 1...Qxd4
        • 2.exd4#
      • 1...Sxd5
        • 2.Sf3#
      • 1...Sxd3!
  • Keys
    • 1.e4!
      • threat
        • 2.Sf3#
      • 1...Qxd4
        • 2.Bh2#
      • 1...Sxd5
        • 2.exd5#

There are these versions: 71309

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(j);N_GUARD::QAB(M),XB(j)
    • S(c);OGATE,XP(G)::R(A)+P(F),XS(c)
    • P(f);N_GUARD::R1(B)
  • Tries
    • Try
      • S(I);
      • Threat
        • B(C)
      • Vars
        • S(c);OGATE,XP(G)::R(A)+P(F),XS(c)
        • P(f);OGATE,XS(I)::R1(B),XP(f)
        • Q(a);N_GUARD::B(C),XQ(a)
      • Refutation
        • S(c);XS(K)
    • Try
      • S(K);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::S(K)
        • Q(a);P_PINP(G)::S(K)
        • Q(a);::S(K)
      • Refutation
        • Q(a);XS(I)
    • Try
      • Q(M);
      • Threat
        • S(I)
      • Vars
        • S(c);OGATE,XP(G)::R(A)+P(F),XS(c)
        • S(c);OGATE,XS(K)::QAR1(M),XS(c)
        • B(j);SBLOCK::QAB(M),XP(h)
      • Refutation
        • Q(a);XS(I)
    • Try
      • P(F);
      • Threat
        • B(C)
      • Vars
        • Q(a);OGATE,XS(I)::R(A)+P(F)DCHECK,XQ(a)
        • S(c);SBLOCK,XS(K)::S(I)
      • Refutation
        • S(c);XP(G)
  • Actual
    • P(F);
    • Threat
      • S(I)
    • Vars
      • Q(a);SBLOCK,XS(I)::B(C)
      • S(c);OGATE,XS(K)::R(A)+P(F),XS(c)
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