MESON Chess Problem Database

Problem Display
PID: 4612 (8/3B4/p1bp3p/rk4qR/p2B2Qp/P1pP1N1P/1r2N1K1/1R2b3 w - - 0 1)

Shinkman, William Anthony

1st Prize, Southern Trade Gazette, 1883

8/3B4/p1bp3p/rk4qR/p2B2Qp/P1pP1N1P/1r2N1K1/1R2b3

#2

11 + 12

5065 Chess Problem Gems by Eight Eminent American Composers 1972
145 StrateGems 1999
268 Chess Life 2004
133 The Problemist Supplement 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Rxd5#
    • 1...Rb4
      • 2.Rxb4#
    • 1...Bf2
      • 2.Sxc3#
  • Tries
    • 1.Rxg5+?
      • 1...d5
        • 2.Rxd5#
      • 1...hxg5!
    • 1.Qxg5+?
      • 1...d5
        • 2.Qxd5#
      • 1...hxg5!
  • Keys
    • 1.Ba7!
      • 1...Qxh5
        • 2.Qc4#
      • 1...Rxb1
        • 2.Sd4#
      • 1...Bxd7
        • 2.Sd4#
      • 1...Qc5
        • 2.Qc4#
      • 1...Qd5
        • 2.Rxd5#
        • 2.Qc4#
      • 1...Qe5
        • 2.Qc4#
      • 1...Qf5
        • 2.Qc4#
      • 1...Rb3
        • 2.Sd4#
      • 1...Rb4
        • 2.Sd4#
        • 2.Rxb4#
      • 1...Bd2
        • 2.Sd4#
      • 1...Bf2
        • 2.Sxc3#
      • 1...Bg3
        • 2.Qc4#
      • 1...c2
        • 2.Sd4#
      • 1...d5
        • 2.Sd4#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 2
  • Sets
    • Q(h);N_PINQ(I),OGATE::R(J),XQ(h)
    • R(b);N_PINS(B),OGATE,P_PINS(F)::R1(A),XR(b)
    • B(a);N_PINS(B),P_PINS(F)::S(B),XP(c)
  • Tries
    • Try
      • R(J);CHECK,N_SPINQ(I),XQ(h)
      • Vars
        • P(k);P_SPINP(k)::R(J),XP(k)
      • Refutation
        • P(l);XR(J)
    • Try
      • Q(I);CHECK,N_SPINQ(I),XQ(h)
      • Vars
        • P(k);P_SPINP(k)::QAR2(I),XP(k)
      • Refutation
        • P(l);P_SPINP(l),XQ(I)
  • Actual
    • B(H);
    • Vars
      • Q(h);N_PINQ(I),N_SPINQ(h),XR(J)::QAB1(I)
      • R(b);N_PINS(B),N_SPINR(b),P_PINS(F),XR(A)::S(B)
      • B(j);N_SPINB(j),XB(K)::S(F)
      • Q(h);N_PINQ(I)::QAB1(I)
      • R(b);N_PINS(B),P_PINS(F)::S(B)
      • B(a);N_PINS(B),P_PINS(F)::S(B)
      • B(a);N_PINS(B),P_PINS(F)::S(B),XP(c)
      • B(a);N_PINQ(I)::QAB1(I)
      • P(c);N_PINS(B),P_PINS(F)::S(B)
      • P(k);N_SPINQ(h)::S(F)
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