MESON Chess Problem Database

Problem Display
PID: 233563 (2b1r1B1/8/2N5/8/4k2N/1r6/2P4P/Q1B3bK w - - 0 1)

Witt, Andreas

Freie Presse, 1995

2b1r1B1/8/2N5/8/4k2N/1r6/2P4P/Q1B3bK

#2

8 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qd4#
      • 2.Qa4#
    • 1...Re5
      • 2.Qxe5#
    • 1...Rd8
      • 2.Qe5#
    • 1...Rf8
      • 2.Qe5#
    • 1...Rxg8
      • 2.Qe5#
    • 1...Bxh2
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Be6
      • 2.Qe5#
  • Tries
    • 1.Qa4+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...Rb4!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qf4#
      • 1...Rxg8
        • 2.Qe5#
      • 1...Bxh2
        • 2.Qd4#
      • 1...Re6
        • 2.Qf5#
      • 1...Be6
        • 2.Qe5#
      • 1...Re3
        • 2.Qd4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Rf8
        • 2.Qe5#
      • 1...Be3
        • 2.Qf3#
      • 1...Bf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(e);N_GUARD::QAR1(A),XR(e)
    • R(e);N_GUARD::QAR1(A)
    • R(e);N_GUARD,XB(H)::QAR1(A)
    • B(a);N_GUARD,XP(E)::QAR1(A)
    • B(a);N_GUARD::QAR1(A),XB(a)
    • B(d);S_CUTR(e)::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(A),XB(a)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(e);N_GUARD,XB(H)::QAR1(A)
      • B(a);N_GUARD,XP(E)::QAR1(A)
      • R(e);S_CUTB(d)::QAB1(A)
      • B(d);S_CUTR(e)::QAR1(A)
      • R(b);S_CUTB(a)::QAR1(A)
      • R(b);N_GUARD::QAB1(A),XR(b)
      • R(e);N_GUARD::QAR1(A)
      • B(a);S_CUTR(b)::QAB1(A)
      • B(d);N_GUARD::QAB1(A),XB(d)
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