MESON Chess Problem Database

Problem Display
PID: 232818 (8/3Qn3/4Bp2/2pn1p2/2pkrB1R/4R3/1N2P3/7K w - - 0 1)

Koller, Paul

Freie Presse, 1968

8/3Qn3/4Bp2/2pn1p2/2pkrB1R/4R3/1N2P3/7K

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Qxd5#
    • 1...Sg6
      • 2.Qxd5#
    • 1...Sc8
      • 2.Qxd5#
    • 1...Sg8
      • 2.Qxd5#
    • 1...c3
      • 2.Rd3#
  • Keys
    • 1.Sxc4!
      • 1...Kxc4
        • 2.Qa4#
      • 1...Rxe3
        • 2.Be5#
      • 1...Rxf4
        • 2.Rxf4#
      • 1...Rxe6
        • 2.Be5#
      • 1...Re5
        • 2.Bxe5#
      • 1...Sc6
        • 2.Qxd5#
      • 1...Sg6
        • 2.Qxd5#
      • 1...Sc8
        • 2.Qxd5#
      • 1...Sg8
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(h);N_GUARD::QAR1(H),XS(e)
    • P(a);N_GUARD::R1(D)
  • Actual
    • S(B);XP(a)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XS(B)::QAR2(H)
      • R(c);XR(D)::R(F)+B(E),DCHECK
      • R(c);OGATE,P_SPINR(c),XB(E)::R(F),XR(c)
      • R(c);XB(G)::R(F)+B(E),DCHECK
      • R(c);::R(F)+B(E),DCHECK,XR(c)
      • S(h);N_GUARD::QAR1(H),XS(e)
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