MESON Chess Problem Database

Problem Display
PID: 248434 (5b2/4n3/5RN1/2pk4/1prp3Q/2r2N1K/qn6/6BB w - - 0 1)

Eaton, Vincent Lanius

British Chess Magazine, 1932

5b2/4n3/5RN1/2pk4/1prp3Q/2r2N1K/qn6/6BB

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Se1#
      • 2.Sd2#
      • 2.Sh2#
      • 2.Sxd4#
      • 2.Sfe5#
      • 2.Sg5#
    • 1...Rc2
      • 2.Sd2#
    • 1...Rxf3+
      • 2.Bxf3#
    • 1...Bh6
      • 2.Sxe7#
    • 1...Bg7
      • 2.Sxe7#
    • 1...Sd3
      • 2.Sd2#
    • 1...d3
      • 2.Sd4#
  • Tries
    • 1.Qe1?
      • threat
        • 2.Sf4#
        • 2.Qe5#
        • 2.Qe6#
      • 1...Rxf3+
        • 2.Bxf3#
      • 1...Sxg6
        • 2.Qe6#
      • 1...Qa6
        • 2.Sf4#
        • 2.Qe5#
      • 1...Bh6
        • 2.Sxe7#
        • 2.Qe5#
        • 2.Qe6#
      • 1...Sd3
        • 2.Sd2#
        • 2.Qe6#
      • 1...Sc6
        • 2.Sf4#
        • 2.Qe6#
      • 1...d3
        • 2.Sd4#
        • 2.Qe5#
        • 2.Qe6#
      • 1...Re3!
    • 1.Qg5+?
      • 1...Sf5
        • 2.Qxf5#
      • 1...Ke4!
    • 1.Qh5+?
      • 1...Sf5
        • 2.Qxf5#
      • 1...Ke4!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Sf4#
      • 1...Rxf3+
        • 2.Bxf3#
      • 1...Ke4
        • 2.Sxe7#
      • 1...Sxg6
        • 2.Qb7#
      • 1...Bh6
        • 2.Sxe7#
      • 1...Sd3
        • 2.Sd2#
      • 1...Sf5
        • 2.Qb7#
      • 1...d3
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_PINS(C)::B(B)+S(C)
    • R(c);CHECK,OGATE,P_SPINR(c),XS(C)::B(B),XR(c)
    • B(j);N_GUARD::S(G),XS(i)
    • S(b);N_PINS(C)::B(B)+S(C)
    • P(f);N_PINS(C)::B(B)+S(C)
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);CHECK,OGATE,P_SPINR(c),XS(C)::B(B),XR(c)
        • S(i);XS(G)::QAB1(E)
      • Refutation
        • R(c);
    • Try
      • Q(E);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::QAR2(E),XS(i)
      • Refutation
        • K(h);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::QAR2(E),XS(i)
      • Refutation
        • K(h);S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • S(G)
    • Vars
      • R(c);CHECK,OGATE,P_SPINR(c),XS(C)::B(B),XR(c)
      • K(h);S_FLIGHT::QAB(E)+S(G),XS(i)
      • S(i);OGATE,XS(G)::QAB(E)
      • B(j);N_GUARD::S(G),XS(i)
      • S(b);N_PINS(C)::B(B)+S(C)
      • S(i);OGATE::QAB(E)
      • P(f);N_PINS(C)::B(B)+S(C)
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