MESON Chess Problem Database

Problem Display
PID: 145421 (1rR3b1/B1n5/1r4B1/R2p4/1p1k1PpN/1KnNp3/8/2Q3b1 w - - 0 1)

Bruch, Wieland

1st Prize, Sachova skladba, 2006

1rR3b1/B1n5/1r4B1/R2p4/1p1k1PpN/1KnNp3/8/2Q3b1

#2

9 + 11

3485 Sachova skladba 2009
23 Die Schwalbe 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Bxb6#
    • 1...Rxc8
      • 2.Bxb6#
    • 1...Sb1
      • 2.Qc5#
    • 1...Sd1
      • 2.Qc5#
    • 1...Sa2
      • 2.Qc5#
    • 1...Se2
      • 2.Qc5#
    • 1...S3b5
      • 2.Qc5#
    • 1...e2
      • 2.Qxg1#
    • 1...g3
      • 2.Sf3#
  • Tries
    • 1.Se1?
      • threat
        • 2.Sc2#
      • 1...Se4
        • 2.Sf5#
      • 1...S3b5!
    • 1.Sc5?
      • threat
        • 2.Sf5#
      • 1...Rf6
        • 2.Se6#
      • 1...Be6!
    • 1.Se5?
      • threat
        • 2.Sc6#
      • 1...Se4
        • 2.Sf5#
      • 1...S7b5!
    • 1.Sf5+?
      • 1...Kxd3
        • 2.Qc2#
      • 1...Ke4!
  • Keys
    • 1.Sxb4!
      • threat
        • 2.Qxc3#
      • 1...Sb1
        • 2.Qc5#
      • 1...Sd1
        • 2.Qxd1#
        • 2.Qc5#
      • 1...Sa2
        • 2.Qd1#
        • 2.Qc5#
      • 1...Se2
        • 2.Qd1#
        • 2.Qc5#
      • 1...Sa4
        • 2.Qd1#
      • 1...Se4
        • 2.Sf5#
      • 1...S3b5
        • 2.Sc6#
      • 1...S7b5
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(j);N_GUARD::B(H),XR(h)
    • R(j);N_GUARD,XR(I)::B(H),XR(h)
    • S(b);OGATE::QAB1(A)
    • P(c);OGATEB::QAB(A),XB(a)
    • P(f);N_GUARD::S(E)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(b);SBLOCK::S(E)
      • Refutation
        • S(b);
    • Try
      • S(C);N_PINR(h)
      • Threat
        • S(E)
      • Vars
        • R(h);::B(H)+S(C),DCHECK
      • Refutation
        • B(k);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(b);SBLOCK::S(E)
      • Refutation
        • S(i);
    • Try
      • S(E);CHECK
      • Vars
        • K(e);N_SPINR(h),P-FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(e);N_SPINR(h),P-FLIGHT
  • Actual
    • S(C);P_SPINS(C),XP(d)
    • Threat
      • QAB1(A),XS(b)
    • Vars
      • S(b);OGATE::QAB1(A)
      • S(b);N_GUARD::QAR(A)
      • S(b);SBLOCK::S(E)
      • S(b);N_PINS(C)::S(C)
      • S(i);N_PINS(C)::S(C)
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