MESON Chess Problem Database

Problem Display
PID: 1048 (3RK3/7B/3p3R/2BP1n2/2p1k3/2pN4/QnP1P3/4N3 w - - 0 1)

Reitman, Mark

The Problemist Supplement, 1998

3RK3/7B/3p3R/2BP1n2/2p1k3/2pN4/QnP1P3/4N3

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qa8#
    • 1...Sd1
      • 2.Qxc4#
    • 1...Sa4
      • 2.Qxc4#
  • Tries
    • 1.Sg2?
      • 1...Kxd5
        • 2.Qa8#
      • 1...cxd3
        • 2.Re6#
      • 1...dxc5
        • 2.Rh4#
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sxd3!
    • 1.Bxf5+?
      • 1...Kxd5
        • 2.Rhxd6#
        • 2.Rdxd6#
        • 2.Qa8#
      • 1...Kxf5!
    • 1.e3?
      • 1...Kxd5
        • 2.Qa8#
      • 1...cxd3
        • 2.Re6#
      • 1...dxc5
        • 2.Re6#
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sxd3!
  • Keys
    • 1.Sf3!
      • 1...Kxd5
        • 2.Qa8#
      • 1...Sxd3
        • 2.Qxc4#
      • 1...cxd3
        • 2.Rh4#
      • 1...dxc5
        • 2.Re6#
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINS(e),OGATEB,P_SPINP(c),S_FLIGHT,XP(G)::QAB(B)
    • S(a);N_GUARD::QAR2(B),XP(c)
  • Tries
    • Try
      • S(A);
      • Vars
        • K(d);N_SPINS(e),OGATEB,P_SPINP(c),S_FLIGHT,XP(G)::QAB(B)
        • P(c);XS(E)::R(H)
        • P(f);XB(F)::R(H)
        • S(a);N_GUARD::QAR2(B),XP(c)
      • Refutation
        • S(a);XS(E)
    • Try
      • B(I);CHECK,XS(e)
      • Refutation
        • K(d);S_FLIGHT,XB(I)
    • Try
      • P(D);
      • Vars
        • K(d);N_SPINS(e),OGATEB,P_SPINP(c),S_FLIGHT,XP(G)::QAB(B)
        • P(c);XS(E)::R(H)
        • P(f);XB(F)::R(H)
        • S(a);N_GUARD::QAR2(B),XP(c)
      • Refutation
        • S(a);XS(E)
  • Actual
    • S(A);
    • Vars
      • K(d);N_SPINS(e),OGATEB,P_SPINP(c),S_FLIGHT,XP(G)::QAB(B)
      • S(a);N_GUARD,XS(E)::QAR2(B),XP(c)
      • P(c);XS(E)::R(H)
      • P(f);XB(F)::R(H)
      • S(a);N_GUARD::QAR2(B),XP(c)
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