MESON Chess Problem Database

Problem Display
PID: 78014 (6R1/8/5pBk/5Rq1/8/3p2pK/3B4/8 w - - 0 1)

Rice, John Michael

The Tablet, 1955

(First published on Sat Oct 22 1955)

6R1/8/5pBk/5Rq1/8/3p2pK/3B4/8

#2

5 + 5

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.Rh5#
    • 1...Qe3
      • 2.Bxe3#
      • 2.Rh5#
    • 1...Qf4
      • 2.Bxf4#
      • 2.Rh5#
  • Tries
    • 1.Kg2?
      • 1...Qe3
        • 2.Bxe3#
        • 2.Rh5#
      • 1...Qf4
        • 2.Bxf4#
        • 2.Rh5#
      • 1...Qxd2+!
    • 1.Rxg5?
      • threat
        • 2.Rxg3#
        • 2.Rg4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Rd5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rh5#
      • 1...g2
        • 2.Rxg2#
        • 2.Rg3#
        • 2.Rg4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Rd5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rh5#
      • 1...f5
        • 2.Rxf5#
        • 2.Rh5#
      • 1...fxg5!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Rh4#
      • 1...Qh4+
        • 2.Rxh4#
      • 1...Qg4+
        • 2.Rxg4#
      • 1...Qf5+
        • 2.Rxf5#
      • 1...Qxf4
        • 2.Bxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_SPINQ(c),OGATE,XB(A)::R1(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(A)
    • Try
      • R(C);XQ(c)
      • Threat
        • DUALS(9)
      • Refutation
        • P(d);P_SPINP(d),XR(C)
  • Actual
    • R(C);N_PINQ(c)
    • Threat
      • R(C)
    • Vars
      • Q(c);CHECK::B(A)+R(C),DCHECK,XQ(c)
      • Q(c);CHECK,OGATEB::B(A)+R(C),XQ(c)
      • Q(c);OGATE,P_SPINQ(c),XR(C)::B(A),XQ(c)
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