MESON Chess Problem Database

Problem Display
PID: 53779 (6r1/4B2b/2p5/2R5/3kBp2/1p1P3p/3K1R2/6Qq w - - 0 1)

Eaton, Vincent Lanius

The Chess Review, 1935

6r1/4B2b/2p5/2R5/3kBp2/1p1P3p/3K1R2/6Qq

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Rxg2#
    • 1...Rg7
      • 2.Qxg7#
    • 1...Ra8
      • 2.Qg7#
    • 1...Rb8
      • 2.Qg7#
    • 1...Rc8
      • 2.Qg7#
    • 1...Rd8
      • 2.Qg7#
    • 1...Re8
      • 2.Qg7#
    • 1...Rh8
      • 2.Qg7#
  • Tries
    • 1.Rxf4+?
      • 1...Qxg1
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bxh7#
      • 1...Rxg1!
    • 1.Rf5?
      • threat
        • 2.Bc5#
        • 2.Bf6#
      • 1...Qxe4
        • 2.Bc5#
      • 1...Rg6
        • 2.Bc5#
      • 1...Re8
        • 2.Bc5#
        • 2.Qg7#
      • 1...Rf8
        • 2.Bc5#
      • 1...c5
        • 2.Bxc5#
        • 2.Bf6#
        • 2.Rd5#
      • 1...Bxf5!
    • 1.Qa1+?
      • 1...b2
        • 2.Qxb2#
        • 2.Qa4#
      • 1...Qxa1!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Rxf4#
      • 1...Qd5
        • 2.Re2#
      • 1...Qg2
        • 2.Rxg2#
      • 1...Qf3
        • 2.Rxf3#
      • 1...Qh2
        • 2.Rxh2#
      • 1...f3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD,P_PINR(C)::QAB(A)+R(C),XQ(a)
    • R(h);N_GUARD::QAB(A),XR(h)
    • R(h);N_GUARD::QAB(A)
  • Tries
    • Try
      • R(C);CHECK,XP(e)
      • Refutation
        • R(h);XQ(A)
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XB(E)::B(G)
        • R(h);::B(G)
      • Refutation
        • B(g);XR(F)
    • Try
      • Q(A);CHECK
      • Refutation
        • Q(a);XQ(A)
  • Actual
    • B(E);
    • Threat
      • QAB(A)+R(C),DCHECK,XP(e)
    • Vars
      • Q(a);N_GUARD::QAB(A)+R(C)
      • Q(a);N_GUARD,P_PINR(C)::QAB(A)+R(C),XQ(a)
      • Q(a);N_GUARD::QAB(A)+R(C),XQ(a)
      • P(e);OGATEB::QAR(A)
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