MESON Chess Problem Database

Problem Display
PID: 156899 (8/2R5/8/B2N4/p3B3/Q1pP4/1pqk1K2/br1b3R w - - 0 1)

Aaholst, Svend

Thema Danicum, 1981

8/2R5/8/B2N4/p3B3/Q1pP4/1pqk1K2/br1b3R

#2

8 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc3+?
      • 1...Qxc3
        • 2.Qxc3#
      • 1...Kc1+!
    • 1.Qxc3+?
      • 1...Kc1+
        • 2.Qd2#
        • 2.Qxc2#
      • 1...Qxc3!
  • Keys
    • 1.Sxc3!
      • 1...Kc1+
        • 2.Se2#
      • 1...Qxd3
        • 2.Sxb1#
      • 1...Qxc3
        • 2.Qxc3#
      • 1...Qb3
        • 2.Sxb1#
      • 1...Qc1
        • 2.Sxb1#
      • 1...Rc1
        • 2.Sb1#
      • 1...Be2
        • 2.Sxb1#
      • 1...Bf3
        • 2.Sxb1#
      • 1...Bg4
        • 2.Sxb1#
      • 1...Bh5
        • 2.Sxb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);CHECK,XP(g)
      • Vars
        • Q(e);OGATE,XB(F)::QAB1(C),XQ(e)
      • Refutation
        • K(f);CHECK,P_SPINB(c),P_SPINP(d),S_FLIGHT
    • Try
      • Q(C);CHECK,XP(g)
      • Refutation
        • Q(e);P_SPINQ(e),XQ(C)
  • Actual
    • S(G);XP(g)
    • Vars
      • K(f);CHECK,P_SPINB(c),P_SPINP(d),S_FLIGHT::S(G)
      • Q(e);XP(D)::B(F)+S(G),DCHECK,XR(b)
      • Q(e);OGATE,P_SPINQ(e),XS(G)::QAB1(C),XQ(e)
      • Q(e);::B(F)+S(G),DCHECK,XR(b)
      • R(b);SBLOCK::B(F)+S(G),DCHECK
      • B(c);::B(F)+S(G),DCHECK,XR(b)
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