MESON Chess Problem Database

Problem Display
PID: 198250 (8/3N4/K1P2pPB/5P1q/Qpp1k1n1/b1Pp1R1p/r7/r6B w - - 0 1)

Sparke, Arthur M

Comm., Club Argentino de Ajedrez, 1920

8/3N4/K1P2pPB/5P1q/Qpp1k1n1/b1Pp1R1p/r7/r6B

#2

10 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Rxd3#
    • 1...Qxf5
      • 2.Re3#
    • 1...Bc1
      • 2.Rf2#
    • 1...Bb2
      • 2.Rf1#
    • 1...Se3
      • 2.Rf4#
    • 1...Se5
      • 2.Sxf6#
    • 1...bxc3
      • 2.Qxc4#
    • 1...b3
      • 2.Qxc4#
  • Keys
    • 1.c7!
      • threat
        • 2.Qc6#
      • 1...Kd5
        • 2.Rxd3#
      • 1...Qxf5
        • 2.Re3#
      • 1...bxc3
        • 2.Qxc4#
      • 1...Bc1
        • 2.Rf2#
      • 1...Bb2
        • 2.Rf1#
      • 1...Se3
        • 2.Rf4#
      • 1...Se5
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(h);S_FLIGHT::B(A)+R(C),DCHECK,XP(d)
    • Q(j);SBLOCK,XP(E)::B(A)+R(C),DCHECK
    • B(c);P_PINQ(D),S_CUTR(a)::B(A)+R(C)
    • B(c);P_PINQ(D),S_CUTR(b)::B(A)+R(C)
    • S(i);SBLOCK::B(A)+R(C),DCHECK
    • S(i);N_GUARD,SBLOCK::S(J),XP(k)
    • P(f);OGATE,P_SPINP(g),XP(B)::QAR2(D),XP(g)
    • P(f);OGATE,P_SPINP(g)::QAR2(D),XP(g)
  • Actual
    • P(G);
    • Threat
      • QAB(D)
    • Vars
      • K(h);S_FLIGHT::B(A)+R(C),DCHECK,XP(d)
      • Q(j);SBLOCK,XP(E)::B(A)+R(C),DCHECK
      • P(f);OGATE,P_SPINP(g),XP(B)::QAR2(D),XP(g)
      • B(c);P_PINQ(D),S_CUTR(a)::B(A)+R(C)
      • B(c);P_PINQ(D),S_CUTR(b)::B(A)+R(C)
      • S(i);SBLOCK::B(A)+R(C),DCHECK
      • S(i);N_GUARD,SBLOCK::S(J),XP(k)
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