MESON Chess Problem Database

Problem Display
PID: 76621 (8/8/8/1B6/8/6K1/2RpP3/1Qbk4 w - - 0 1)

Cafferata, Louis William

The Tablet, 1939

(First published on Sat Jul 22 1939)

8/8/8/1B6/8/6K1/2RpP3/1Qbk4

#2

5 + 3

15239 Valois Notebooks 2016
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd2+?
      • 1...Ke1
        • 2.Qxc1#
      • 1...Kxd2!
    • 1.Qa1?
      • 1...Kxc2
        • 2.Ba4#
      • 1...Ke1!
  • Keys
    • 1.Qb4!
      • 1...Ke1
        • 2.Rxc1#
      • 1...Kxc2
        • 2.Ba4#
      • 1...Bb2
        • 2.Qxd2#
      • 1...Ba3
        • 2.Qxd2#

This anticipates 39186(1946)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK,XP(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XB(a)
      • Refutation
        • K(b);N_SPINB(a),P-FLIGHT,XR(B)
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINB(a),OGATEB,S_FLIGHT,XR(B)::B(E)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);N_PINB(a)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c)::R(B),XB(a)
      • K(b);OGATEB,S_FLIGHT,XR(B)::B(E)
      • B(a);N_GUARD::QAR1(A),XP(c)
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