MESON Chess Problem Database

Problem Display
PID: 258891 (3Q4/1Np4B/5R1p/3pk2K/4p2p/2p1b2r/b3P3/6B1 w - - 0 1)

Waterhouse, Albert F

Manchester Weekly Times, 1893

(First published on Fri Sep 22 1893)

3Q4/1Np4B/5R1p/3pk2K/4p2p/2p1b2r/b3P3/6B1

#2

7 + 10

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qe7#
    • 1...Bd2
      • 2.Qe7#
    • 1...Bd4
      • 2.Qe7#
    • 1...Bf4
      • 2.Qe7#
    • 1...Bg5
      • 2.Qe7#
    • 1...Bb6
      • 2.Qe7#
    • 1...Ba7
      • 2.Qe7#
  • Tries
    • 1.Sa5?
      • threat
        • 2.Sc6#
      • 1...c6
        • 2.Sxc6#
      • 1...Kd4!
    • 1.Bxe3?
      • threat
        • 2.Qe7#
      • 1...d4
        • 2.Bxd4#
        • 2.Bf4#
        • 2.Qxd4#
      • 1...Rxe3!
    • 1.Rf5+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Kd4!
    • 1.Re6+?
      • 1...Kd4
        • 2.Rxe4#
      • 1...Kf4
        • 2.Qxc7#
      • 1...Kxe6!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qf6#
      • 1...Kd4
        • 2.Rxe4#
      • 1...Kxf4
        • 2.Qxc7#
      • 1...Ke6
        • 2.Qe8#
      • 1...Bxf4
        • 2.Qe7#
      • 1...d4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • B(c);::QAR2(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(j);::S(E),XP(j)
      • Refutation
        • K(h);P_SPINB(c),P_SPINP(g),S_FLIGHT
    • Try
      • B(A);XB(c)
      • Threat
        • QAR2(G)
      • Refutation
        • R(d);XB(A)
    • Try
      • R(D);CHECK
      • Vars
        • K(h);N_GUARD,P-FLIGHT::QAR2(G)
      • Refutation
        • K(h);P_SPINB(c),P_SPINP(g),S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(h);OGATE,P_SPINB(c),P_SPINP(g),S_FLIGHT::R1(D),XP(e)
        • K(h);N_GUARD,S_FLIGHT::QAB(G),XP(j)
      • Refutation
        • K(h);P-FLIGHT,XR(D)
  • Actual
    • R(D);
    • Threat
      • QAB1(G)
    • Vars
      • K(h);P_SPINB(c),P_SPINP(e),S_CUTP(g),S_FLIGHT::R1(D),XP(e)
      • K(h);N_GUARD,S_FLIGHT,XR(D)::QAB(G),XP(j)
      • K(h);N_GUARD,P-FLIGHT::QAR2(G)
      • B(c);SBLOCK,XR(D)::QAR2(G)
      • P(g);N_GUARD::R1(D),XP(e)
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