MESON Chess Problem Database

Problem Display
PID: 17341 (r1bQ4/qPNn4/p2k4/B7/1P1bnP2/8/1N6/K1RRr2B w - - 0 1)

Eaton, Vincent Lanius

3rd Prize, Christian Science Monitor, 1946

r1bQ4/qPNn4/p2k4/B7/1P1bnP2/8/1N6/K1RRr2B

#2

11 + 9

14773 The Best American Chess Problems of 1946 1948

SOLUTION

  • SOUND
  • Sets
    • 1...Qb8
      • 2.Rxd4#
    • 1...Sd2
      • 2.Rc6#
    • 1...Sf2
      • 2.Rc6#
    • 1...Sc3
      • 2.Sc4#
    • 1...Sg3
      • 2.Rc6#
    • 1...Sc5
      • 2.Rxd4#
    • 1...Sg5
      • 2.Rc6#
    • 1...Sf6
      • 2.Rc6#
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qe6#
      • 1...Sd2
        • 2.Rc6#
      • 1...Sf2
        • 2.Rc6#
      • 1...Sc3
        • 2.Sc4#
      • 1...Sg3
        • 2.Rc6#
      • 1...Sec5
        • 2.Rxd4#
      • 1...Sg5
        • 2.Rc6#
      • 1...Sef6
        • 2.Rc6#
      • 1...Sdc5
        • 2.Rxd4#
      • 1...Se5
        • 2.fxe5#
      • 1...Sb6
        • 2.Rc6#
      • 1...Sdf6
        • 2.Rc6#
      • 1...Sb8
        • 2.bxc8S#
      • 1...Sf8
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • Q(f);N_GUARD::R(C),XB(b)
    • S(c);N_SPINB(b)::R1(B)
    • S(c);::R1(B)
    • S(c);N_PINS(E)::S(E)
    • S(c);S_CUTQ(f)::R(C),XB(b)
  • Actual
    • Q(K);N_PINS(g)
    • Threat
      • QAR1(K)
    • Vars
      • S(c);N_SPINB(b)::R1(B)
      • S(c);::R1(B)
      • S(c);N_PINS(E)::S(E)
      • S(c);S_CUTQ(f)::R(C),XB(b)
      • S(g);S_CUTQ(f)::R(C),XB(b)
      • S(g);OGATE::P(G),XS(g)
      • S(g);::R1(B)
      • S(g);S_CUTR(h)::PXB(i)=S
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