MESON Chess Problem Database

Problem Display
PID: 234907 (3nK3/1b2N3/2p3Q1/2k2pR1/1R1N4/PP2n3/5B2/4r1rB w - - 0 1)

Haring, Jacobus

Freie Presse, 1973

3nK3/1b2N3/2p3Q1/2k2pR1/1R1N4/PP2n3/5B2/4r1rB

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kd7?
      • threat
        • 2.Qd6#
      • 1...Sc4
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sf7
        • 2.Se6#
      • 1...Bc8+!
    • 1.Rxf5+?
      • 1...Sd5
        • 2.Se2#
      • 1...Sxf5!
  • Keys
    • 1.Sexf5!
      • threat
        • 2.Qd6#
      • 1...Sd1+
        • 2.Se6#
      • 1...Sf1+
        • 2.Se6#
      • 1...Sc2+
        • 2.Se6#
      • 1...Sg2+
        • 2.Se3#
      • 1...Sc4+
        • 2.Se6#
      • 1...Sg4+
        • 2.Se6#
      • 1...Sd5+
        • 2.Se6#
      • 1...Sxf5+
        • 2.Se2#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sf7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Threat
        • QAB1(H)
      • Vars
        • S(c);::B(B)+S(F),DCHECK
        • S(h);N_GUARD::S(F),XS(h)
        • S(h);N_GUARD::S(F)
      • Refutation
        • B(g);CHECK
    • Try
      • R(G);CHECK,XP(e)
      • Vars
        • S(c);P_PINS(I),P_SPINS(c)::B(B)+S(F)
      • Refutation
        • S(c);P_PINS(I),XR(G)
  • Actual
    • S(I);XP(e)
    • Threat
      • QAB1(H)
    • Vars
      • S(c);CHECK::B(B)+S(F),DCHECK
      • S(c);CHECK,S_CUTR(b)::R(G)+S(I)
      • S(c);CHECK,P_SPINS(c),XS(I)::B(B)+S(F)
      • S(h);N_GUARD::S(F),XS(h)
      • S(h);N_GUARD::S(F)
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