MESON Chess Problem Database

Problem Display
PID: 9629 (8/2N5/1bp5/Npr1P1BK/3k2p1/4RP2/n1n1PQ2/8 w - - 0 1)

Shinkman, William Anthony

Deutsches Wochenschach, 1907

8/2N5/1bp5/Npr1P1BK/3k2p1/4RP2/n1n1PQ2/8

#2

9 + 8

3925 The Golden Argosy 1929

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Re4#
    • 1...Rc4
      • 2.Sb3#
    • 1...Rd5
      • 2.Se6#
    • 1...Rxe5
      • 2.Rd3#
    • 1...Sc3
      • 2.Re4#
    • 1...Sxe3
      • 2.Qxe3#
    • 1...gxf3
      • 2.Qh4#
  • Tries
    • 1.Ra3+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Kxe5!
    • 1.Rb3+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Kxe5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qd1#
        • 2.Qxg4#
      • 1...Rxe5
        • 2.Rd3#
      • 1...Bxa5
        • 2.Qxg4#
      • 1...Bxc7
        • 2.Qd1#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...gxf3
        • 2.Qd1#
        • 2.Qg4#
      • 1...Rc3
        • 2.Re4#
      • 1...Rc4
        • 2.Sb3#
      • 1...Rd5
        • 2.Se6#
      • 1...Sc1
        • 2.Qxg4#
      • 1...Sc3
        • 2.Re4#
      • 1...Sab4
        • 2.Qxg4#
      • 1...Se1
        • 2.Qxg4#
      • 1...Scb4
        • 2.Qxg4#
      • 1...g3
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(f);SBLOCK::QAB(B)+R(C),DCHECK
    • R(f);SBLOCK::S(E)
    • R(f);SBLOCK::S(I)
    • R(f);P_PINB(G),SBLOCK,XP(F)::QAB(B)+R(C),DCHECK
    • S(a);SBLOCK::QAB(B)+R(C),DCHECK
    • S(b);OGATE,P_SPINS(b),XR(C)::QAB1(B),XS(b)
    • P(d);OGATEB,XP(D)::QAR(B)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(B),XS(b)
      • Refutation
        • K(c);S_FLIGHT,XP(F)
    • Try
      • R(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(B),XS(b)
      • Refutation
        • K(c);S_FLIGHT,XP(F)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);P_PINB(G),SBLOCK,XP(F)::QAB(B)+R(C),DCHECK
      • B(g);XS(E)::QAR(B),XP(d)
      • B(g);XS(I)::QAR(B)
      • S(b);OGATE,P_SPINS(b),XR(C)::QAB1(B),XS(b)
      • R(f);SBLOCK::QAB(B)+R(C),DCHECK
      • R(f);SBLOCK::S(E)
      • R(f);SBLOCK::S(I)
      • S(a);::QAR(B),XP(d)
      • S(a);SBLOCK::QAB(B)+R(C),DCHECK
      • S(b);::QAR(B),XP(d)
      • P(d);::QAR(B)
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