MESON Chess Problem Database

Problem Display
PID: 180731 (1R6/3K4/2PR4/1bkp4/1rPr4/1P1P4/3Q4/2N5 w - - 0 1)

Shire, David J

Problem Observer, 2012

1R6/3K4/2PR4/1bkp4/1rPr4/1P1P4/3Q4/2N5

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Sxb3#
    • 1...Ra4
      • 2.Rxb5#
    • 1...Re4
      • 2.Rxd5#
    • 1...Rf4
      • 2.Rxd5#
    • 1...Rg4
      • 2.Rxd5#
    • 1...Rh4
      • 2.Rxd5#
    • 1...Ba4
      • 2.Qxb4#
    • 1...Bxc4
      • 2.Qxb4#
    • 1...Ba6
      • 2.Qxb4#
    • 1...Bxc6+
      • 2.Rxc6#
  • Keys
    • 1.Qc3!
      • 1...Bxc6+
        • 2.Rxc6#
      • 1...Rxb3
        • 2.Sxb3#
      • 1...Rbxc4
        • 2.b4#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Rdxc4
        • 2.d4#
      • 1...Bxc4
        • 2.Qxb4#
      • 1...dxc4
        • 2.Qxd4#
      • 1...Ra4
        • 2.Rxb5#
      • 1...Re4
        • 2.Rxd5#
      • 1...Rf4
        • 2.Rxd5#
      • 1...Rg4
        • 2.Rxd5#
      • 1...Rh4
        • 2.Rxd5#
      • 1...Ba4
        • 2.Qxb4#
      • 1...Ba6
        • 2.Qxb4#

This is after 180719

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(a);XP(C)::S(A),XR(a)
    • R(a);N_GUARD::R1(I),XB(c)
    • R(b);N_GUARD::R1(G),XP(e)
    • B(c);::QAB1(B),XR(a)
    • B(c);N_PINP(F),XP(E)::QAB1(B),XR(a)
    • B(c);N_PINP(F)::QAB1(B),XR(a)
    • B(c);CHECK,OGATE,XP(F)::R1(G),XB(c)
  • Actual
    • Q(B);
    • Vars
      • B(c);CHECK,OGATE,XP(F)::R1(G),XB(c)
      • R(a);XP(C)::S(A),XR(a)
      • R(a);OGATE,P_SPINR(a),XP(E)::P(C)
      • R(b);XP(D)::S(A),XR(b)
      • R(b);OGATE,P_SPINR(b),XP(E)::P(D)
      • B(c);N_PINP(F),P_SPINB(c),XP(E)::QAB1(B),XR(a)
      • P(e);P_PINR(G),P_SPINP(e),XP(E)::QAB1(B),XR(b)
      • R(a);N_GUARD::R1(I),XB(c)
      • R(b);N_GUARD::R1(G),XP(e)
      • B(c);::QAB1(B),XR(a)
      • B(c);N_PINP(F)::QAB1(B),XR(a)
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