MESON Chess Problem Database

Problem Display
PID: 69448 (8/8/3Pp1Pb/1K2k3/3R4/2BBn3/Q7/4R3 w - - 0 1)

Pierce, William Timbrell

The Chess Player's Chronicle (Sampson), 1877

8/8/3Pp1Pb/1K2k3/3R4/2BBn3/Q7/4R3

#2

8 + 4

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Rd5#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
        • 2.Rg4#
        • 2.Rh4#
      • 1...Bf4
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
        • 2.Rd5#
      • 1...Kf6!
    • 1.Kc6?
      • threat
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
        • 2.Rg4#
        • 2.Rh4#
      • 1...Bf4
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
        • 2.Rd5#
      • 1...Kf6!
    • 1.Qd5+?
      • 1...Kf6
        • 2.Rf4#
      • 1...exd5!
    • 1.Qf2?
      • 1...Bf4
        • 2.Qxf4#
      • 1...Bg7
        • 2.Rxe3#
        • 2.Qf4#
      • 1...Bf8
        • 2.Rxe3#
        • 2.Qf4#
      • 1...Bg5!
    • 1.Qh2+?
      • 1...Bf4
        • 2.Qxf4#
        • 2.Qh8#
      • 1...Kf6!
  • Keys
    • 1.Qg2!
      • 1...Kf6
        • 2.Rf4#
      • 1...Bg5
        • 2.Qxg5#
      • 1...Bf4
        • 2.Rd5#
      • 1...Bg7
        • 2.Qg5#
      • 1...Bf8
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK::B(C)+R(E),DCHECK
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • DUALS(5)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • K(F);S_FLIGHT
      • Threat
        • DUALS(5)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(C)+R(E),DCHECK
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);
      • Vars
        • B(d);N_GUARD::QAB1(B),XB(d)
      • Refutation
        • B(d);
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT::B(C)+R(E),DCHECK
      • B(d);N_GUARD::QAR2(B),XB(d)
      • B(d);SBLOCK::B(C)+R(E),DCHECK
      • B(d);N_GUARD::QAR2(B)
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