MESON Chess Problem Database

Problem Display
PID: 51931 (3b2b1/N6p/pp1P3P/5Q1R/p1k4r/K1p1P2p/1n5P/2R5 w - - 0 1)

Morse, Christopher Jeremy

London Evening News, 1960

3b2b1/N6p/pp1P3P/5Q1R/p1k4r/K1p1P2p/1n5P/2R5

#2

9 + 11

23 Die Schwalbe 2003
1106 Rochade Europa 2010
133 The Problemist Supplement 2012
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Qxe4#
    • 1...Bc7
      • 2.Rxh4#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sd1
      • 2.Qf1#
    • 1...c2
      • 2.Rxc2#
      • 2.Qxc2#
    • 1...a5
      • 2.Qb5#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Rxc3#
      • 1...axb5
        • 2.Qxb5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sd1
        • 2.Qf1#
      • 1...c2
        • 2.Rxc2#
        • 2.Qxc2#
      • 1...Bf6!
  • Keys
    • 1.Rd1!
      • 1...Rxh5
        • 2.Rd4#
      • 1...Sxd1
        • 2.Qf1#
      • 1...Bd5
        • 2.Qxd5#
      • 1...c2
        • 2.Qxc2#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qxg4#
      • 1...Bg5
        • 2.Qc8#
      • 1...Bf6
        • 2.Qc8#
      • 1...Bc7
        • 2.Rxh4#
      • 1...Be7
        • 2.Qc8#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Sd3
        • 2.Qxd3#
      • 1...a5
        • 2.Qb5#
      • 1...b5
        • 2.Qc5#

This anticipates 197675(1986)

This is after

After J. C. J. Wainwright.

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::QAR2(E),XR(f)
    • B(j);N_GUARD::R(F),XR(f)
    • B(k);N_GUARD::QAB1(E),XB(k)
    • S(a);N_GUARD::QAB(E)
    • P(g);N_GUARD::QAB1(E)
  • Tries
    • Try
      • S(I);
      • Threat
        • R1(A),XP(b)
      • Vars
        • P(g);OGATE,XS(I)::QAB1(E),XP(g)
        • B(k);N_GUARD::QAB1(E),XB(k)
        • S(a);N_GUARD::QAB(E)
      • Refutation
        • B(j);
  • Actual
    • R(A);N_PINP(b)
    • Vars
      • R(f);N_GUARD,XR(F)::R1(A)
      • S(a);N_GUARD,XR(A)::QAB(E)
      • B(k);N_GUARD::QAB1(E),XB(k)
      • P(b);OGATEB::QAR2(E),XP(b)
      • R(f);N_GUARD::R1(A),XR(f)
      • R(f);N_GUARD::QAR2(E),XR(f)
      • R(f);N_GUARD::QAR(E),XR(f)
      • B(j);N_GUARD::QAR(E)
      • B(j);N_GUARD::R(F),XR(f)
      • B(j);N_GUARD,P_PINP(G)::QAR(E)
      • B(k);N_GUARD::QAB(E),XB(k)
      • S(a);N_GUARD::QAB1(E),XS(a)
      • P(g);N_GUARD::QAB1(E)
      • P(h);N_GUARD::QAR1(E)
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