MESON Chess Problem Database

Problem Display
PID: 23851 (2b5/1pp5/4P2R/r3kNB1/1R2B2p/NQ6/6pq/b2K2n1 w - - 0 1)

Bruch, Wieland

2nd Prize, Schach-Aktiv, 1997

2b5/1pp5/4P2R/r3kNB1/1R2B2p/NQ6/6pq/b2K2n1

#2

9 + 10

4849 The Sushkov Theme 1999
23 Die Schwalbe 2004
5417 FIDE Album (1995-1997) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Bf6#
    • 1...Rxa3
      • 2.Qd5#
    • 1...Ra4
      • 2.Qd5#
    • 1...Rd5+
      • 2.Qxd5#
    • 1...Ra6
      • 2.Qd5#
    • 1...Ra7
      • 2.Qd5#
    • 1...Ra8
      • 2.Qd5#
    • 1...Bb2
      • 2.Qxb2#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bxe6
      • 2.Rxe6#
      • 2.Qxe6#
    • 1...b5
      • 2.Qd5#
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Bf6#
      • 1...Rd5
        • 2.Sc4#
      • 1...Bd4!
    • 1.Rb5+?
      • 1...Kxe4
        • 2.Qd5#
        • 2.Qe3#
      • 1...c5
        • 2.Qd5#
      • 1...Rxb5!
    • 1.Qc2?
      • threat
        • 2.Sc4#
        • 2.Qxc7#
      • 1...Rxa3
        • 2.Qc5#
        • 2.Qxc7#
      • 1...Bxe6
        • 2.Qxc7#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Ra6
        • 2.Sc4#
        • 2.Qc5#
      • 1...Bc3
        • 2.Sc4#
        • 2.Qxc3#
      • 1...Bd4
        • 2.Sc4#
      • 1...b5
        • 2.Qc5#
        • 2.Qxc7#
      • 1...c5
        • 2.Sc4#
      • 1...c6
        • 2.Sc4#
      • 1...Rd5+!
    • 1.Qc4?
      • threat
        • 2.Qxc7#
      • 1...Rd5+
        • 2.Qxd5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Ra6
        • 2.Qd5#
        • 2.Qc5#
      • 1...c5
        • 2.Qd5#
      • 1...c6!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sc4#
      • 1...Rd5+
        • 2.Bd3#
      • 1...Rxa3
        • 2.Qc5#
      • 1...Bxe6
        • 2.Bf6#
      • 1...Rc5
        • 2.Qxc5#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(d);SBLOCK::B(G)
    • R(f);N_GUARD,XS(B)::QAR1(C)
    • R(f);N_GUARD::QAR1(C)
    • R(f);CHECK,N_GUARD::QAR1(C),XR(f)
    • B(a);N_GUARD::QAB(C),XB(a)
    • P(h);S_CUTR(f)::QAR1(C)
    • P(i);S_CUTR(f)::QAR1(C)
  • Tries
    • Try
      • B(E);
      • Threat
        • B(G)
      • Vars
        • R(f);P_PINB(E),SBLOCK::S(B)
      • Refutation
        • B(a);
    • Try
      • R(D);CHECK
      • Vars
        • P(i);P_SPINP(i)::QAR1(C)
      • Refutation
        • R(f);XR(D)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(j);XP(H)::QAB(C),XP(i)
        • R(f);N_GUARD::QAR2(C),XR(f)
        • B(a);::S(B)
        • P(i);::S(B)
      • Refutation
        • R(f);CHECK
    • Try
      • Q(C);
      • Threat
        • QAB(C),XP(i)
      • Vars
        • R(f);CHECK,N_GUARD::QAR1(C),XR(f)
        • B(a);N_GUARD::QAB1(C),XB(a)
        • R(f);N_GUARD::QAR2(C),XR(f)
        • P(i);S_CUTR(f)::QAR1(C)
      • Refutation
        • P(i);
  • Actual
    • Q(C);
    • Threat
      • S(B)
    • Vars
      • R(f);CHECK,SBLOCK::QAR(C)+B(E)
      • R(f);N_GUARD,XS(B)::QAR2(C)
      • B(j);SBLOCK,XP(H)::B(G)
      • R(f);N_GUARD::QAR2(C),XR(f)
      • P(h);S_CUTR(f)::QAR2(C)
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