MESON Chess Problem Database

Problem Display
PID: 11225 (3bN3/1B1pp3/1pr5/1p1k2p1/N3n1Q1/5Rp1/2R5/2K5 w - - 0 1)

Westbury, Eric Ernest

Chess, 1937

3bN3/1B1pp3/1pr5/1p1k2p1/N3n1Q1/5Rp1/2R5/2K5

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rd3#
  • Tries
    • 1.Bxc6+?
      • 1...Kd4
        • 2.Qxe4#
      • 1...Ke5
        • 2.Qxe4#
      • 1...dxc6!
    • 1.Qf5+?
      • 1...e5
        • 2.Rd3#
      • 1...Kd4!
    • 1.Qxd7+?
      • 1...Ke5
        • 2.Rf5#
      • 1...Sd6!
  • Keys
    • 1.Re3!
      • threat
        • 2.Qxe4#
      • 1...Kd4
        • 2.Qxe4#
      • 1...Ke5
        • 2.Qxe4#
      • 1...Sd2
        • 2.Qxd7#
      • 1...Sf2
        • 2.Qxd7#
      • 1...Sc3
        • 2.Rd2#
      • 1...Sc5
        • 2.Sc3#
      • 1...Sd6
        • 2.Qd1#
      • 1...Sf6
        • 2.Qd1#
      • 1...e5
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(i);SBLOCK::R(C)
  • Tries
    • Try
      • B(F);CHECK,N_SPINR(B),XR(g)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(b)::QAR1(E),XS(b)
        • K(d);P-FLIGHT::QAR1(E),XS(b)
      • Refutation
        • P(h);XB(F)
    • Try
      • Q(E);CHECK
      • Vars
        • P(i);P_SPINP(i)::R(C)
      • Refutation
        • K(d);N_SPINR(g),P-FLIGHT
    • Try
      • Q(E);CHECK,XP(h)
      • Vars
        • K(d);N_SPINR(g),P-FLIGHT::R1(C)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • R(C);
    • Threat
      • QAB1(E),XS(b)
    • Vars
      • K(d);N_SPINR(g),P-FLIGHT,P_SPINS(b)::QAR1(E),XS(b)
      • S(b);N_GUARD::QAR2(E),XP(h)
      • S(b);N_PINR(B)::R(B)
      • S(b);N_GUARD,N_PINR(B),SBLOCK::S(D)
      • S(b);N_GUARD::QAR(E)
      • P(i);SBLOCK::R(C)
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