MESON Chess Problem Database

Problem Display
PID: 79390 (6b1/b1B4p/3R4/2p1k3/2P2NpP/3B2P1/5n2/4KR1Q w - - 0 1)

Trumper, William Barnard

The Tablet, 1965

(First published on Sat Feb 6 1965)

6b1/b1B4p/3R4/2p1k3/2P2NpP/3B2P1/5n2/4KR1Q

#2

10 + 7

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sd1
      • 2.Qe4#
    • 1...Sxd3+
      • 2.Sxd3#
    • 1...Sh3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...h5
      • 2.Sg6#
    • 1...h6
      • 2.Sg6#
  • Tries
    • 1.Kxf2?
      • threat
        • 2.Re1#
        • 2.Qe4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Be6!
    • 1.Rxf2?
      • threat
        • 2.Re2#
        • 2.Qe4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Be6!
    • 1.Qc6?
      • threat
        • 2.Rd5#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Sxd3+
        • 2.Sxd3#
      • 1...Bd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Se4
        • 2.Rd5#
        • 2.Qxe4#
      • 1...Bb6
        • 2.Rd5#
      • 1...Bb8
        • 2.Rd5#
      • 1...Be6!
    • 1.Qb7?
      • threat
        • 2.Qb2#
      • 1...Sxd3+
        • 2.Sxd3#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sd1
        • 2.Qe4#
      • 1...Bb6!
  • Keys
    • 1.Qa8!
      • 1...Sxd3+
        • 2.Sxd3#
      • 1...Bxc4
        • 2.Qh8#
      • 1...Bd5
        • 2.Qxd5#
        • 2.Qh8#
      • 1...Be6
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...Bb6
        • 2.Qa1#
      • 1...Bb8
        • 2.Qa1#
      • 1...Bf7
        • 2.Qh8#
      • 1...Sd1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe4#
      • 1...h5
        • 2.Sg6#
      • 1...h6
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(g);N_GUARD::QAR1(C),XB(g)
    • S(a);N_GUARD::QAR1(C)
    • S(a);CHECK,XB(D)::S(G),XS(a)
    • S(a);N_GUARD::QAR1(C),XS(a)
    • P(f);N_GUARD::S(G)
  • Tries
    • Try
      • K(A);S_FLIGHT,XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);N_GUARD::QAR1(C),XB(g)
      • Refutation
        • B(g);
    • Try
      • R(B);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);N_GUARD::QAR1(C),XB(g)
      • Refutation
        • B(g);
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);CHECK,XB(D)::S(G),XS(a)
        • B(e);::B(J)+R(I),DCHECK
      • Refutation
        • B(g);
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • S(a);CHECK,XB(D)::S(G),XS(a)
        • S(a);N_GUARD::QAR1(C),XS(a)
        • S(a);N_GUARD::QAR1(C)
      • Refutation
        • B(e);
  • Actual
    • Q(C);
    • Vars
      • S(a);CHECK,XB(D)::S(G),XS(a)
      • B(g);OGATE,XP(F)::QAB(C)
      • B(g);OGATE::QAB(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • B(e);OGATE::QAB(C)
      • S(a);N_GUARD::QAR1(C)
      • P(f);N_GUARD::S(G)
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