MESON Chess Problem Database

Problem Display
PID: 16969 (8/8/1n6/1R3K2/QRpkN3/nB3p2/4bP2/4N3 w - - 0 1)

Rehn, Gunnar

Tidskrift for Schack, 1944

8/8/1n6/1R3K2/QRpkN3/nB3p2/4bP2/4N3

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxf3#
  • Tries
    • 1.Rxb6?
      • threat
        • 2.Rd6#
        • 2.Qd7#
      • 1...Kd5
        • 2.Rd6#
        • 2.Qd7#
      • 1...Sb5!
    • 1.Qa5?
      • threat
        • 2.Qxb6#
      • 1...Sa4
        • 2.Rd5#
        • 2.Qd8#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sd7
        • 2.Rd5#
      • 1...Sa8
        • 2.Rd5#
        • 2.Qd8#
      • 1...Sc8
        • 2.Rd5#
      • 1...Sxb5!
  • Keys
    • 1.Bxc4!
      • 1...Bxc4
        • 2.Qd1#
      • 1...Saxc4
        • 2.Qa1#
      • 1...Sxb5
        • 2.Sc2#
      • 1...Sxa4
        • 2.Rd5#
      • 1...Sbxc4
        • 2.Qa7#
      • 1...Bd1
        • 2.Qxd1#
      • 1...Bf1
        • 2.Sxf3#
      • 1...Bd3
        • 2.Sxf3#
      • 1...Sb1
        • 2.Sc2#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sd7
        • 2.Rd5#
      • 1...Sa8
        • 2.Rd5#
      • 1...Sc8
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD,P_PINS(F),SBLOCK::S(A),XP(c)
  • Tries
    • Try
      • R(G);XS(f)
      • Threat
        • DUALS(2)
      • Refutation
        • S(b);
    • Try
      • Q(D);
      • Threat
        • QAB(D),XS(f)
      • Vars
        • S(f);N_GUARD::R1(G),XS(f)
        • S(f);N_GUARD::R1(G)
      • Refutation
        • S(b);XR(G)
  • Actual
    • B(C);XP(d)
    • Vars
      • B(a);N_GUARD,P_SPINB(a),XB(C)::QAR(D)
      • S(b);OGATE,P_SPINS(b),XB(C)::QAB(D)
      • S(b);N_GUARD,XR(G)::S(A)
      • S(f);N_GUARD,XQ(D)::R1(G)
      • S(f);OGATEB,P_SPINS(f),XB(C)::QAB(D)
      • B(a);N_GUARD::QAR(D),XB(a)
      • B(a);N_GUARD::S(A),XP(c)
      • B(a);N_GUARD,P_PINS(F)::S(A),XP(c)
      • S(b);N_GUARD::S(A)
      • S(b);N_GUARD::S(A),XS(b)
      • S(f);N_GUARD::R1(G),XS(f)
      • S(f);N_GUARD::R1(G)
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Developed and maintained by Brian Stephenson.
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