MESON Chess Problem Database

Problem Display
PID: 48250 (B3n3/3p1P2/2r1p1K1/R1Pkb1NR/1n2p1Q1/1P2p1NP/8/Bb6 w - - 0 1)

Bruch, Wieland

Papack, Daniel

2nd Prize, Freie Presse, 1998

B3n3/3p1P2/2r1p1K1/R1Pkb1NR/1n2p1Q1/1P2p1NP/8/Bb6

#2

12 + 10

14503 Problemschach-Jahrbuch (1999) 2000
23 Die Schwalbe 2003
23 Die Schwalbe 2005
6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qxe4#
    • 1...Sc2
      • 2.Qxe4#
    • 1...Sd3
      • 2.Qxe4#
    • 1...d6
      • 2.Qxe6#
  • Tries
    • 1.Sxe6?
      • threat
        • 2.Rxe5#
      • 1...d6
        • 2.Sf4#
      • 1...Sd3!
    • 1.Sh7?
      • threat
        • 2.Rxe5#
      • 1...Sd3
        • 2.Qxe4#
      • 1...d6!
    • 1.Qf5?
      • threat
        • 2.Qxe5#
      • 1...d6
        • 2.Qxe6#
      • 1...Sd3
        • 2.Qxe4#
      • 1...exf5+!
  • Keys
    • 1.S5xe4!
      • threat
        • 2.Rxe5#
      • 1...Bxe4+
        • 2.Qxe4#
      • 1...Sd3
        • 2.Sc3#
      • 1...d6
        • 2.cxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(E),XP(d)
    • S(c);S_CUTB(a)::QAB1(E),XP(d)
    • P(i);N_GUARD::QAB1(E),XP(h)
  • Tries
    • Try
      • S(H);P_PINB(f),P_SPINS(H),XP(h)
      • Threat
        • R1(I),XB(f)
      • Vars
        • P(i);N_PINS(H)::S(H)
      • Refutation
        • S(c);
    • Try
      • S(H);P_PINB(f)
      • Threat
        • R1(I),XB(f)
      • Vars
        • S(c);S_CUTB(a)::QAB1(E),XP(d)
      • Refutation
        • P(i);
    • Try
      • Q(E);P_PINB(f)
      • Threat
        • QAR1(E),XB(f)
      • Vars
        • P(i);N_GUARD::QAB1(E),XP(h)
        • S(c);S_CUTB(a)::QAB1(E),XP(d)
      • Refutation
        • P(h);CHECK,N_SPINB(f),XQ(E)
  • Actual
    • S(H);P_PINB(f),P_SPINS(H),XP(d)
    • Threat
      • R1(I),XB(f)
    • Vars
      • B(a);CHECK,OGATE,XS(H)::QAB1(E),XB(a)
      • S(c);N_PINS(H)::S(H)
      • P(i);OGATE::R(F)+P(G),XP(i)
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