MESON Chess Problem Database

Problem Display
PID: 18851 (5n2/2p5/4p3/1r1k3b/5P2/Q1R1K3/4B3/8 w - - 0 1)

Lytton, Cedric C (was Sells, CCL)

The Tablet, 1958

(First published on Sat Sep 13 1958)

5n2/2p5/4p3/1r1k3b/5P2/Q1R1K3/4B3/8

#2

5 + 6

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qc5#
    • 1...Rb2
      • 2.Qc5#
    • 1...Rb3
      • 2.Qc5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rb6
      • 2.Qc5#
    • 1...Rb7
      • 2.Qc5#
    • 1...Rb8
      • 2.Qc5#
    • 1...Bf3
      • 2.Bxf3#
    • 1...Bf7
      • 2.Bf3#
    • 1...Be8
      • 2.Bf3#
    • 1...c6
      • 2.Bc4#
  • Tries
    • 1.Bxb5?
      • threat
        • 2.Bc6#
        • 2.Rd3#
        • 2.Qc5#
      • 1...c5
        • 2.Rd3#
        • 2.Qxc5#
      • 1...Be2
        • 2.Bc6#
        • 2.Qc5#
      • 1...Bg6
        • 2.Bc6#
        • 2.Qc5#
      • 1...Be8
        • 2.Rd3#
        • 2.Qc5#
      • 1...Sd7
        • 2.Bc6#
        • 2.Rd3#
      • 1...c6
        • 2.Bc4#
        • 2.Bxc6#
        • 2.Rd3#
        • 2.Qc5#
      • 1...e5!
    • 1.Rd3+?
      • 1...Kc4
        • 2.Rd4#
        • 2.Qc3#
      • 1...Kc6!
    • 1.Qa2+?
      • 1...Rb3
        • 2.Qd2#
      • 1...Kd6!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qc6#
      • 1...Rb6
        • 2.Qd3#
      • 1...c6
        • 2.Qxc6#
      • 1...Rc5
        • 2.Rd3#
      • 1...Be8
        • 2.Bf3#
      • 1...c5
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::QAR1(B)
    • R(a);N_GUARD,P_PINR(C)::QAR1(B)
    • R(a);N_GUARD::QAR1(B),XR(a)
    • B(c);N_GUARD::B(A),XB(c)
    • B(c);N_GUARD::B(A)
    • P(e);SBLOCK::B(A)
  • Tries
    • Try
      • B(A);XR(a)
      • Threat
        • DUALS(3)
      • Refutation
        • P(d);
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • R(a);P_PINR(C),P_SPINR(a)::QAR(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • R(a);OGATE::QAR2(B)
      • P(e);::QAB1(B),XP(e)
      • R(a);SBLOCK::R(C)
      • B(c);N_GUARD::B(A)
      • P(e);SBLOCK::B(A)
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