MESON Chess Problem Database

Problem Display
PID: 90 (6n1/b3PKR1/R5Np/1rQN2kp/8/q1p1P3/8/2BB4 w - - 0 1)

Schiffmann, Israel Abraham

Revista Romana de Sah, 1930

6n1/b3PKR1/R5Np/1rQN2kp/8/q1p1P3/8/2BB4

#2

10 + 8

1397 Faszinierendes Schachproblem 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.e4#
    • 1...Qb3
      • 2.e4#
    • 1...Qa4
      • 2.e4#
    • 1...Qa5
      • 2.e4#
    • 1...Qxa6
      • 2.e4#
    • 1...Rb4
      • 2.Sb6#
    • 1...Rb6
      • 2.Sb4#
  • Keys
    • 1.Ra4!
      • threat
        • 2.Sh4#
      • 1...Kf5
        • 2.e4#
      • 1...Qxa4
        • 2.e4#
      • 1...Sxe7
        • 2.Sgxe7#
      • 1...Qb4
        • 2.e4#
      • 1...Rb4
        • 2.Sb6#
      • 1...Rb6
        • 2.Sb4#
      • 1...h4
        • 2.Sxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::B(A)+P(C)
    • Q(a);N_GUARD,P_PINS(E)::B(A)+P(C)
    • Q(a);N_GUARD,XR(F)::B(A)+P(C)
    • R(c);N_GUARD,S_CUTQ(a)::QAR(D)+S(E)
    • R(c);N_GUARD,S_CUTB(g)::QAR(D)+S(E)
  • Actual
    • R(F);
    • Threat
      • R(J)+S(G)
    • Vars
      • K(d);P-FLIGHT::P(C)
      • Q(a);N_GUARD,XR(F)::B(A)+P(C)
      • S(h);XP(H)::R(J)+S(G),XS(h)
      • Q(a);N_GUARD::B(A)+P(C)
      • R(c);N_GUARD,S_CUTQ(a)::QAR(D)+S(E)
      • R(c);N_GUARD,S_CUTB(g)::QAR(D)+S(E)
      • P(e);::R(J)+S(G),XP(e)
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Developed and maintained by Brian Stephenson.
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