MESON Chess Problem Database

Problem Display
PID: 16508 (5K2/8/BP6/BRPN2p1/3R2b1/qP2p3/2p1kp1Q/2r1Nrn1 w - - 0 1)

Fenner, A Jack

Chess, 1941

5K2/8/BP6/BRPN2p1/3R2b1/qP2p3/2p1kp1Q/2r1Nrn1

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc5+
      • 2.Rxc5#
    • 1...Qxb3
      • 2.Rxb3#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qxe3#
      • 1...Qxc5+
        • 2.Rxc5#
      • 1...Qxb3
        • 2.Rxb3#
      • 1...Rfxe1
        • 2.Rbb4#
      • 1...fxe1Q
        • 2.Rbb4#
      • 1...fxe1S
        • 2.Sc3#
      • 1...fxe1B
        • 2.Rbb4#
      • 1...fxe1R
        • 2.Sc3#
        • 2.Rbb4#
      • 1...gxf4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(g);CHECK,OGATE,XP(G)::B(I)+R(F),XQ(g)
    • Q(g);N_PINP(G),OGATE,XP(C)::B(I)+R(F),XQ(g)
  • Actual
    • Q(B);N_PINP(f)
    • Threat
      • QAR1(B),XP(h)
    • Vars
      • Q(g);CHECK,OGATE,XP(G)::B(I)+R(F),XQ(g)
      • Q(g);N_PINP(G),OGATE,XP(C)::B(I)+R(F),XQ(g)
      • R(b);SBLOCK,XS(A)::B(I)+R(F)
      • P(f);P_PINQ(B),SBLOCK,XS(A)::B(I)+R(F)
      • P(f);P_PINQ(B),SBLOCK,XS(A)::S(H)
      • P(j);XQ(B)::S(H),XP(j)
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