MESON Chess Problem Database

Problem Display
PID: 153703 (B4R2/8/8/2p1b3/3k2p1/2p3P1/2P5/Q4K2 w - - 0 1)

Adcock, Frank Raven

Cheltenham Examiner, 1890

(First published on Wed Jul 16 1890)

B4R2/8/8/2p1b3/3k2p1/2p3P1/2P5/Q4K2

#2

6 + 5

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qa4#
    • 1...c4
      • 2.Qa7#
  • Tries
    • 1.Rf3?
      • threat
        • 2.Qxc3#
      • 1...Kc4
        • 2.Qa4#
      • 1...c4
        • 2.Qa7#
      • 1...gxf3!
    • 1.Rf4+?
      • 1...Ke3
        • 2.Qc1#
        • 2.Qe1#
      • 1...Bxf4!
    • 1.Rd8+?
      • 1...Ke3
        • 2.Rd3#
        • 2.Qc1#
        • 2.Qe1#
      • 1...Kc4
        • 2.Qa4#
      • 1...Bd6!
    • 1.Qd1+?
      • 1...Ke3
        • 2.Qd3#
      • 1...Kc4!
    • 1.Qe1?
      • threat
        • 2.Qe4#
      • 1...c4
        • 2.Qf2#
      • 1...Kc4!
    • 1.Qa4+?
      • 1...c4
        • 2.Qa7#
      • 1...Ke3!
  • Keys
    • 1.Re8!
      • 1...Ke3
        • 2.Qxc3#
      • 1...Kc4
        • 2.Qa4#
      • 1...Bxg3
        • 2.Re4#
      • 1...Bf4
        • 2.Re4#
      • 1...Bd6
        • 2.Re4#
      • 1...Bf6
        • 2.Re4#
      • 1...Bc7
        • 2.Re4#
      • 1...Bg7
        • 2.Re4#
      • 1...Bb8
        • 2.Re4#
      • 1...Bh8
        • 2.Re4#
      • 1...c4
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
    • P(d);OGATEB,SBLOCK::QAB(A)
  • Tries
    • Try
      • R(F);
      • Threat
        • QAB1(A),XP(a)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
        • P(d);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • P(c);XR(F)
    • Try
      • R(F);CHECK
      • Refutation
        • B(e);XR(F)
    • Try
      • R(F);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAR1(A)
      • Vars
        • P(d);SBLOCK::QAB(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • P(d);OGATEB,P_SPINP(d),SBLOCK::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(b);N_SPINP(a),P_SPINB(e),S_FLIGHT::QAR2(A),XP(a)
      • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
      • B(e);OGATE,XP(D)::R1(F)
      • B(e);OGATE::R1(F)
      • P(d);OGATEB,SBLOCK::QAB(A)
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