MESON Chess Problem Database

Problem Display
PID: 47744 (2b3Q1/8/3Rp2k/3P4/6K1/8/8/8 w - - 0 1)

Lincoln, Robert A

Australian Chess Problem Magazine TT, 1996

2b3Q1/8/3Rp2k/3P4/6K1/8/8/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Rxe6#
    • 1...Bb7
      • 2.Rxe6#
  • Tries
    • 1.Kh4?
      • 1...Ba6
        • 2.Rxe6#
      • 1...Bb7
        • 2.Rxe6#
      • 1...Bd7!
    • 1.Rb6?
      • 1...Ba6
        • 2.Rxe6#
      • 1...Bb7
        • 2.Rxe6#
      • 1...Bd7!
    • 1.Rc6?
      • 1...Ba6
        • 2.Rxe6#
      • 1...Bb7
        • 2.Rxe6#
      • 1...Bd7!
    • 1.Rd7?
      • threat
        • 2.Rh7#
        • 2.Qxe6#
        • 2.Qh7#
        • 2.Qg5#
        • 2.Qg7#
      • 1...exd5
        • 2.Qe6#
        • 2.Qh7#
        • 2.Qg5#
        • 2.Qg7#
      • 1...e5
        • 2.Qe6#
        • 2.Qh7#
        • 2.Qg5#
        • 2.Qg7#
      • 1...Bxd7!
    • 1.Qf7?
      • 1...Ba6
        • 2.Rxe6#
      • 1...Bb7
        • 2.Rxe6#
      • 1...Bd7!
  • Keys
    • 1.dxe6!
      • 1...Bxe6+
        • 2.Rxe6#
      • 1...Bd7
        • 2.exd7#
      • 1...Ba6
        • 2.e7#
      • 1...Bb7
        • 2.e7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::R(C),XP(a)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • B(c);N_GUARD::R(C),XP(a)
      • Refutation
        • B(c);
    • Try
      • R(C);
      • Vars
        • B(c);N_GUARD::R(C),XP(a)
      • Refutation
        • B(c);
    • Try
      • R(C);
      • Vars
        • B(c);N_GUARD::R(C),XP(a)
      • Refutation
        • B(c);
    • Try
      • R(C);N_PINP(a)
      • Threat
        • DUALS(5)
      • Refutation
        • B(c);XR(C)
    • Try
      • Q(D);
      • Vars
        • B(c);N_GUARD::R(C),XP(a)
      • Refutation
        • B(c);
  • Actual
    • P(B);P_SPINP(B),XP(a)
    • Vars
      • B(c);CHECK,OGATE,P_SPINB(c),XP(B)::R(C),XB(c)
      • B(c);::R(C)+P(B),XB(c)
      • B(c);N_PINP(B)::R(C)+P(B)
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