MESON Chess Problem Database

Problem Display
PID: 21596 (4b3/2b2B2/1Rr1pN2/4R2n/1Pk5/1p1p1N2/r2Q3K/B2n4 w - - 0 1)

Sheppard, Charles William

Argentine Ty., 1920

4b3/2b2B2/1Rr1pN2/4R2n/1Pk5/1p1p1N2/r2Q3K/B2n4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd2+
      • 2.Sxd2#
    • 1...Rd6
      • 2.Rc5#
    • 1...Bxe5+
      • 2.Sxe5#
    • 1...Bd6
      • 2.Bxe6#
    • 1...Bd8
      • 2.Re4#
    • 1...Bxf7
      • 2.Rxc6#
    • 1...Sb2
      • 2.Qc1#
    • 1...Sf2
      • 2.Qc3#
    • 1...Sf4
      • 2.Re4#
  • Keys
    • 1.Bg6!
      • threat
        • 2.Bxd3#
      • 1...Rxd2+
        • 2.Sxd2#
      • 1...Bxe5+
        • 2.Sxe5#
      • 1...Bxg6
        • 2.Rxc6#
      • 1...b2
        • 2.Qxd3#
      • 1...Rd6
        • 2.Rc5#
      • 1...Sb2
        • 2.Qc1#
      • 1...Sf2
        • 2.Qc3#
      • 1...Sf4
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(b);CHECK,XQ(B)::S(D),XR(b)
    • R(g);N_PINR(F)::R1(F)
    • B(i);CHECK,XR(F)::S(D),XB(i)
    • B(i);S_CUTR(g)::B(I),XP(h)
    • B(i);N_PINR(F)::R(F)
    • B(j);N_GUARD,N_SPINP(h),XB(I)::R(G),XR(g)
    • S(a);N_PINQ(B)::QAR(B)
    • S(a);N_PINQ(B)::QAR1(B)
    • S(f);N_PINR(F)::R(F)
  • Actual
    • B(I);N_PINP(h)
    • Threat
      • B(I),XP(d)
    • Vars
      • R(b);CHECK,XQ(B)::S(D),XR(b)
      • B(i);CHECK,XR(F)::S(D),XB(i)
      • B(j);N_GUARD,XB(I)::R(G),XR(g)
      • P(c);N_PINQ(B)::QAB1(B),XP(d)
      • R(g);N_PINR(F)::R1(F)
      • S(a);N_PINQ(B)::QAR(B)
      • S(a);N_PINQ(B)::QAR1(B)
      • S(f);N_PINR(F)::R(F)
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