MESON Chess Problem Database

Problem Display
PID: 184326 (3N4/1p2r3/4p3/np1k1p2/1B1P1Rp1/1p6/6R1/3Q1BK1 w - - 0 1)

Feldbrugge, Johannes Hermanus Bernardus

Tijdschrift vd KNSB, 1958

3N4/1p2r3/4p3/np1k1p2/1B1P1Rp1/1p6/6R1/3Q1BK1

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Qxb3#
    • 1...g3
      • 2.Qf3#
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qxb5#
        • 2.Qe5#
      • 1...Rc7
        • 2.Qe5#
        • 2.Qxe6#
      • 1...Sc6
        • 2.Qxb5#
      • 1...e5
        • 2.Qxb5#
      • 1...Sc4!
  • Keys
    • 1.Re2!
      • threat
        • 2.Re5#
      • 1...Kc4
        • 2.d5#
      • 1...Sc4
        • 2.Bg2#
      • 1...Sc6
        • 2.Qxb3#
      • 1...e5
        • 2.dxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::QAB(A),XP(a)
    • P(b);N_GUARD::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::QAR2(A),XP(d)
        • P(g);::QAR2(A),XP(d)
      • Refutation
        • S(c);
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • K(e);OGATE,S_FLIGHT::R(G)+P(F)
      • S(c);SBLOCK::B(B)
      • S(c);N_GUARD::QAB(A),XP(a)
      • P(g);OGATE::QAR(A)+P(F),XP(g)
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