MESON Chess Problem Database

Problem Display
PID: 68410 (8/8/3Q4/8/N4B2/2R5/Pp6/rk1b2K1 w - - 0 1)

Bolus, Andrew

Cheltenham Examiner, 1892

(First published on Wed Apr 13 1892)

8/8/3Q4/8/N4B2/2R5/Pp6/rk1b2K1

#2

6 + 4

187 The Chess Bouquet 1897
15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa2
      • 2.Qxd1#
  • Tries
    • 1.Rb3?
      • threat
        • 2.Rxb2#
      • 1...Kxa2
        • 2.Rxb2#
      • 1...Kc2
        • 2.Rxb2#
        • 2.Qd3#
        • 2.Qg6#
      • 1...Rxa2
        • 2.Qxd1#
      • 1...Bxb3!
    • 1.Qd3+?
      • 1...Kxa2
        • 2.Ra3#
      • 1...Bc2!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Rxb2#
      • 1...Kxa2
        • 2.Rxb2#
      • 1...Kxc2
        • 2.Qg6#
      • 1...Rxa2
        • 2.Qxd1#
      • 1...Bxc2
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK,XP(B)::QAR2(F),XB(c)
  • Tries
    • Try
      • R(C);P_PINP(d)
      • Threat
        • R1(C),XP(d)
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT,XP(B)::R1(C),XP(d)
        • R(a);SBLOCK,XP(B)::QAR2(F),XB(c)
      • Refutation
        • B(c);N_SPINP(d),XR(C)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(B)::R1(C)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • R(C);
    • Threat
      • R1(C),XP(d)
    • Vars
      • K(b);P_SPINP(d),S_FLIGHT,XP(B)::R1(C),XP(d)
      • K(b);OGATEB,S_FLIGHT,XR(C)::QAB(F)
      • R(a);SBLOCK,XP(B)::QAR2(F),XB(c)
      • B(c);SBLOCK,XR(C)::S(D)
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