MESON Chess Problem Database

Problem Display
PID: 157160 (8/r2p1R2/8/r4B2/5kPK/2Q5/b1P4b/8 w - - 0 1)

Haring, Jacobus

Die Schwalbe, 1937

8/r2p1R2/8/r4B2/5kPK/2Q5/b1P4b/8

#2

6 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qg3#
    • 1...Bg3+
      • 2.Qxg3#
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qe4#
      • 1...Bg3+
        • 2.Qxg3#
      • 1...Kf3
        • 2.Be4#
      • 1...Rxf5
        • 2.Rxf5#
      • 1...Ra4
        • 2.Be6#
      • 1...Re5
        • 2.Qf2#
      • 1...Bd5
        • 2.Be6#
      • 1...d5
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::QAB1(B)
    • B(b);CHECK,N_GUARD::QAB1(B),XB(b)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • B(b);CHECK,N_GUARD::QAB1(B),XB(b)
      • K(c);P-FLIGHT::R(F)+B(E),DCHECK
      • R(d);OGATE,P_SPINR(d),XB(E)::R1(F),XR(d)
      • R(d);N_GUARD::R(F)+B(E)
      • R(d);SBLOCK::QAR2(B)
      • B(a);S_CUTR(d)::R(F)+B(E)
      • P(f);S_CUTB(a),S_CUTR(d)::R(F)+B(E)
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