MESON Chess Problem Database

Problem Display
PID: 2119 (8/3N4/3p4/1P3p2/K1kpbR2/3R3Q/P7/N1B5 w - - 0 1)

Brown, Theodore Morris

Source?, 0000

8/3N4/3p4/1P3p2/K1kpbR2/3R3Q/P7/N1B5

#2

9 + 5

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Rdxd4#
      • 2.Rfxd4#
    • 1...Bg2
      • 2.Rdxd4#
      • 2.Rfxd4#
    • 1...Bf3
      • 2.Rfxd4#
    • 1...Bd5
      • 2.Rc3#
      • 2.Rdxd4#
      • 2.Rfxd4#
    • 1...Bc6
      • 2.Rdxd4#
      • 2.Rfxd4#
    • 1...Bb7
      • 2.Rdxd4#
      • 2.Rfxd4#
    • 1...Ba8
      • 2.Rdxd4#
      • 2.Rfxd4#
  • Tries
    • 1.Bb2?
      • threat
        • 2.Rxd4#
      • 1...Bxd3
        • 2.Rxd4#
      • 1...Kd5!
    • 1.Rxe4?
      • threat
        • 2.Rdxd4#
        • 2.Rexd4#
      • 1...Kd5
        • 2.Rdxd4#
      • 1...fxe4!
    • 1.Qh8?
      • threat
        • 2.Qxd4#
      • 1...Kd5
        • 2.Qg8#
      • 1...Kxd3!
  • Keys
    • 1.Qg2!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kd5
        • 2.Qg8#
      • 1...Bxg2
        • 2.Rfxd4#
      • 1...Bxd3
        • 2.Qc6#
      • 1...Bf3
        • 2.Rfxd4#
      • 1...Bd5
        • 2.Rfxd4#
        • 2.Qc2#
      • 1...Bc6
        • 2.Rfxd4#
      • 1...Bb7
        • 2.Rfxd4#
      • 1...Ba8
        • 2.Rfxd4#
      • 1...d5
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATE,P_SPINP(b)::R1(G),XP(b)
  • Tries
    • Try
      • B(B);
      • Threat
        • R1(D),XP(b)
      • Vars
        • B(c);OGATE,P_SPINP(b),XR(D)::R1(G),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • R(G);P_PINP(b),XB(c)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::R1(D),XP(b)
      • Refutation
        • P(d);N_SPINP(b),XR(G)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAB1(E)
      • K(a);P_SPINB(c),P_SPINP(b),S_FLIGHT::QAB(E)
      • B(c);OGATE,P_SPINP(b),XQ(E)::R1(G),XP(b)
      • B(c);OGATE,P_SPINP(b),SBLOCK,XR(D)::QAR2(E)
      • B(c);OGATE,P_SPINP(b)::R1(G),XP(b)
      • B(c);OGATE,P_PINP(H),P_SPINP(b)::R1(G),XP(b)
      • P(e);SBLOCK::QAR2(E)
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