MESON Chess Problem Database

Problem Display
PID: 17270 (1Q6/6p1/7b/1b1B2B1/p3K3/ppk5/2P1R3/2R5 w - - 0 1)

Giobel, Bengt Rudolf

Svenska Dagbladet, 1928

1Q6/6p1/7b/1b1B2B1/p3K3/ppk5/2P1R3/2R5

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kb2
      • 2.c4#
    • 1...Bd3+
      • 2.cxd3#
    • 1...Bc4
      • 2.cxb3#
    • 1...Ba6
      • 2.cxb3#
    • 1...Bc6
      • 2.cxb3#
    • 1...Bd7
      • 2.cxb3#
    • 1...Be8
      • 2.cxb3#
  • Tries
    • 1.Qxb5?
      • threat
        • 2.cxb3#
      • 1...Kb2
        • 2.cxb3#
        • 2.c3#
        • 2.c4#
      • 1...bxc2
        • 2.Rcxc2#
        • 2.Rexc2#
      • 1...b2
        • 2.Qc4#
        • 2.Qa5#
        • 2.Qc5#
      • 1...Bxg5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qd4#
      • 1...Bd3+
        • 2.cxd3#
      • 1...Kb2
        • 2.c4#
      • 1...Kb4
        • 2.c3#
      • 1...Bc4
        • 2.cxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(c);OGATE,S_FLIGHT::R(C)+P(B)
    • B(e);CHECK,OGATE::R(A)+P(B),XB(e)
    • B(e);::R(A)+P(B),XP(b)
    • B(e);P_PINB(E)::R(A)+P(B),XP(b)
  • Tries
    • Try
      • Q(G);XB(e)
      • Threat
        • R(A)+P(B),XP(b)
      • Refutation
        • B(f);XB(F)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • B(e);CHECK,OGATE::R(A)+P(B),XB(e)
      • K(c);OGATE,S_FLIGHT::R(C)+P(B)
      • K(c);OGATE,P_SPINB(e),S_FLIGHT::P(B)
      • B(e);::R(A)+P(B),XP(b)
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