MESON Chess Problem Database

Problem Display
PID: 719 (B2n4/2K1P1rR/N3k1b1/2p1n1B1/5RpN/3pQp2/7b/2r5 w - - 0 1)

Buchwald, Julius

British Chess Magazine, 1943

B2n4/2K1P1rR/N3k1b1/2p1n1B1/5RpN/3pQp2/7b/2r5

#2

9 + 11

3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxc5#
    • 1...Rb1
      • 2.Sxc5#
    • 1...Rd1
      • 2.Sxc5#
    • 1...Re1
      • 2.Sxc5#
    • 1...Rf1
      • 2.Sxc5#
    • 1...Rg1
      • 2.Sxc5#
    • 1...Rh1
      • 2.Sxc5#
    • 1...Rxe7+
      • 2.Rxe7#
    • 1...Rg8
      • 2.Rf6#
    • 1...Bf7
      • 2.exd8S#
    • 1...Sf7
      • 2.e8Q#
      • 2.e8R#
    • 1...c4
      • 2.Sc5#
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Bd5#
        • 2.Rf6#
      • 1...Rxc5+
        • 2.Sxc5#
      • 1...Rxe7+
        • 2.Rxe7#
      • 1...Bxf4
        • 2.Bd5#
      • 1...Bf5
        • 2.Bd5#
      • 1...Rf7
        • 2.Bd5#
      • 1...Be4
        • 2.Rf6#
      • 1...Sc4
        • 2.Qd5#
      • 1...Sec6
        • 2.Qd6#
      • 1...Sd7
        • 2.exd8S#
      • 1...Sef7
        • 2.e8Q#
        • 2.e8R#
      • 1...Sdc6
        • 2.Rf6#
        • 2.Qd6#
      • 1...Sb7
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 10
  • Sets
    • R(a);N_GUARD::S(E),XP(f)
    • R(j);CHECK,OGATE,XP(G)::R1(H),XR(j)
    • R(j);N_PINP(G)::R1(B)
    • B(i);N_PINP(G)::PXS(k)=S
    • S(k);N_PINP(G)::P=Q
    • P(f);S_CUTR(a)::S(E)
  • Actual
    • Q(A);N_PINS(g),P_SPINQ(A),XP(f)
    • Threat
      • DUALS(2)
    • Vars
      • R(a);CHECK,XQ(A)::S(E),XR(a)
      • R(j);CHECK,OGATE,XP(G)::R1(H),XR(j)
      • B(b);XR(B)::B(I)
      • B(i);::B(I)
      • R(j);::B(I)
      • B(i);::R1(B)
      • S(g);N_PINQ(A),P_PINR(B)::QAB1(A)
      • S(g);N_PINQ(A),P_PINR(B)::QAR1(A)
      • S(g);N_PINP(G),P_PINR(B)::PXS(k)=S
      • S(g);N_PINP(G),P_PINR(B)::P=Q
      • S(k);::R1(B)
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Developed and maintained by Brian Stephenson.
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