MESON Chess Problem Database

Problem Display
PID: 79610 (4K3/B6P/8/8/5NN1/4p1p1/7r/Q5rk w - - 0 1)

Morse, Christopher Jeremy

The Tablet, 1967

(First published on Sat Sep 23 1967)

4K3/B6P/8/8/5NN1/4p1p1/7r/Q5rk

#2

6 + 5

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qxb1#
    • 1...Rc1
      • 2.Qxc1#
    • 1...Rd1
      • 2.Qxd1#
    • 1...Re1
      • 2.Qxe1#
    • 1...Rf1
      • 2.Qxf1#
    • 1...e2
      • 2.Qxg1#
  • Tries
    • 1.h8R?
      • 1...Rxh8+
        • 2.Qxh8#
      • 1...Rb1
        • 2.Qxb1#
      • 1...Rc1
        • 2.Qxc1#
      • 1...Rd1
        • 2.Qxd1#
      • 1...Re1
        • 2.Qxe1#
      • 1...Rf1
        • 2.Qxf1#
      • 1...Rh3
        • 2.Rxh3#
      • 1...Rh4
        • 2.Rxh4#
      • 1...Rh5
        • 2.Rxh5#
      • 1...Rh6
        • 2.Rxh6#
      • 1...Rh7
        • 2.Rxh7#
      • 1...e2
        • 2.Qxg1#
      • 1...g2
        • 2.Rxh2#
      • 1...Rxa1!
  • Keys
    • 1.h8Q!
      • 1...Rxh8+
        • 2.Qxh8#
      • 1...Rxa1
        • 2.Qxa1#
      • 1...Rb1
        • 2.Qxb1#
      • 1...Rc1
        • 2.Qxc1#
      • 1...Rd1
        • 2.Qxd1#
      • 1...Re1
        • 2.Qxe1#
      • 1...Rf1
        • 2.Qxf1#
      • 1...Rh3
        • 2.Qxh3#
      • 1...Rh4
        • 2.Qxh4#
      • 1...Rh5
        • 2.Qxh5#
      • 1...Rh6
        • 2.Qxh6#
      • 1...Rh7
        • 2.Qxh7#
      • 1...e2
        • 2.Qxg1#
      • 1...g2
        • 2.Qxh2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATEB::QAR(A),XR(a)
    • R(a);OGATEB::QAR2(A),XR(a)
    • P(d);::QAR1(A),XR(a)
  • Tries
    • Try
      • P(E);
      • Vars
        • R(c);CHECK,OGATE,XR(E)::QAB(A),XR(c)
        • R(a);OGATEB::QAR(A),XR(a)
        • R(a);OGATEB::QAR2(A),XR(a)
        • R(c);OGATEB::R(E),XR(c)
        • P(d);::QAR1(A),XR(a)
        • P(e);N_GUARD::R1(E),XR(c)
      • Refutation
        • R(a);N_SPINR(a),P_SPINR(c),XQ(A)
  • Actual
    • P(E);
    • Vars
      • R(c);CHECK,OGATE,XQ(E)::QAB(A),XR(c)
      • R(a);N_SPINR(a),OGATE,P_SPINR(c),XQ(A)::QAB1(E),XR(a)
      • R(a);OGATEB::QAR(A),XR(a)
      • R(a);OGATEB::QAR2(A),XR(a)
      • R(c);OGATEB::QAR2(E),XR(c)
      • R(c);OGATEB::QAR(E),XR(c)
      • P(d);::QAR1(A),XR(a)
      • P(e);N_GUARD::QAR1(E),XR(c)
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