MESON Chess Problem Database

Problem Display
PID: 135305 (1B2K3/1pN2R1P/1P2pP2/R1P1kNpP/rbp2p2/4p3/6P1/1B2Q3 w - - 0 1)

Vollenweider, Odette (aka Baumgartner, Gabriel)

2nd Prize, Neue Zurcher Zeitung, 2004-2005

1B2K3/1pN2R1P/1P2pP2/R1P1kNpP/rbp2p2/4p3/6P1/1B2Q3

#2

14 + 9

23 Die Schwalbe 2009
15527 schachkunst (1997-2010) (Hoffmann) 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qc3#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bxc5
      • 2.Rxc5#
      • 2.Qc3#
    • 1...e2
      • 2.Qxe2#
    • 1...f3
      • 2.Qg3#
      • 2.Qxe3#
  • Tries
    • 1.Se7?
      • threat
        • 2.Sb5#
      • 1...Kd4
        • 2.Sxe6#
      • 1...Bxc5!
    • 1.Rd7?
      • threat
        • 2.Sd5#
      • 1...Kxf6
        • 2.h8Q#
        • 2.h8B#
      • 1...Bxc5
        • 2.Qc3#
      • 1...exf5!
    • 1.Re7?
      • threat
        • 2.Rxe6#
      • 1...Kxf6
        • 2.Rxe6#
        • 2.h8Q#
        • 2.h8B#
      • 1...f3!
    • 1.Qd1?
      • threat
        • 2.Sb5#
        • 2.Sd5#
        • 2.Sa6#
        • 2.Sa8#
        • 2.Qd4#
        • 2.Qd6#
      • 1...Bxc5
        • 2.Sa6#
        • 2.Sa8#
        • 2.Rxc5#
        • 2.Qd4#
        • 2.Qd6#
      • 1...exf5
        • 2.Qd5#
        • 2.Qd6#
      • 1...Bc3
        • 2.Sb5#
        • 2.Sd5#
        • 2.Sa6#
        • 2.Sa8#
        • 2.Qd6#
      • 1...Bd2!
  • Keys
    • 1.Sxe3!
      • threat
        • 2.Sb5#
      • 1...Kd4
        • 2.Sxe6#
      • 1...Bxc5
        • 2.Sf5#
      • 1...fxe3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(c);N_GUARD::QAB(B)
    • B(c);N_GUARD::QAB(B),XB(c)
    • P(a);OGATEB::QAR(B),XP(a)
  • Tries
    • Try
      • S(F);
      • Threat
        • B(M)+S(J)
      • Vars
        • K(f);N_SPINP(a),S_FLIGHT::S(J),XP(h)
      • Refutation
        • B(c);P_SPINB(c),XP(E)
    • Try
      • R(K);
      • Threat
        • B(M)+S(J)
      • Vars
        • K(f);N_SPINP(a),S_FLIGHT,XP(I)::P=Q
        • B(c);N_GUARD,P_SPINB(c),XP(E)::QAB(B)
      • Refutation
        • P(h);XS(F)
    • Try
      • R(K);
      • Threat
        • R1(K),XP(h)
      • Refutation
        • P(e);
    • Try
      • Q(B);N_PINP(a)
      • Threat
        • DUALS(6)
      • Refutation
        • B(c);
  • Actual
    • S(F);XP(a)
    • Threat
      • B(M)+S(J)
    • Vars
      • K(f);S_FLIGHT::S(J),XP(h)
      • B(c);N_GUARD,P_SPINB(c),XP(E)::QAR(B)+S(F)
      • P(e);OGATE,P_SPINP(e),XS(F)::QAR2(B),XP(e)
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