MESON Chess Problem Database

Problem Display
PID: 138514 (8/4p3/1p6/1r1P3N/3NkPp1/1B3RP1/8/BK4bQ w - - 0 1)

Ellerman, Arnoldo

The Bristol Times, 1926

8/4p3/1p6/1r1P3N/3NkPp1/1B3RP1/8/BK4bQ

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3+
      • 2.Rxb3#
    • 1...Rxd5
      • 2.Bc2#
    • 1...Bh2
      • 2.Qe1#
    • 1...gxf3
      • 2.Qxf3#
    • 1...e5
      • 2.Sf6#
    • 1...e6
      • 2.Sf6#
  • Keys
    • 1.Sg7!
      • threat
        • 2.Qh7#
      • 1...Rxb3+
        • 2.Rxb3#
      • 1...Rxd5
        • 2.Bc2#
      • 1...Bxd4
        • 2.Rc3#
      • 1...gxf3
        • 2.Qxf3#
      • 1...Bh2
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(d);CHECK,OGATE,XB(D)::QAB(C)+R(E),XR(d)
    • R(d);N_PINB(D),SBLOCK,XP(I)::B(D)
    • B(a);OGATE::QAR(C)
    • P(c);OGATE,P_SPINP(c),XR(E)::QAB1(C),XP(c)
    • P(f);N_GUARD::S(J)
  • Actual
    • S(J);
    • Threat
      • QAB(C)
    • Vars
      • R(d);CHECK,OGATE,XB(D)::QAB(C)+R(E),XR(d)
      • R(d);N_PINB(D),SBLOCK,XP(I)::B(D)
      • B(a);SBLOCK,XS(G)::QAB(C)+R(E)
      • P(c);OGATE,P_SPINP(c),XR(E)::QAB1(C),XP(c)
      • B(a);OGATE::QAR(C)
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