MESON Chess Problem Database

Problem Display
PID: 198071 (B2R4/b3N1n1/r1N3Kn/8/2P1k2P/2B1P1p1/2P1Q1pq/8 w - - 0 1)

Millins, Edward

Millins, James Lever

The Problemist, 1982

B2R4/b3N1n1/r1N3Kn/8/2P1k2P/2B1P1p1/2P1Q1pq/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sb4#
      • 2.Sa5#
      • 2.Se5#
      • 2.Sxa7#
      • 2.Sb8#
    • 1...Ra2
      • 2.Sb4#
      • 2.Sa5#
      • 2.Se5#
      • 2.Sxa7#
      • 2.Sb8#
    • 1...Ra3
      • 2.Sb4#
      • 2.Sa5#
      • 2.Se5#
      • 2.Sxa7#
      • 2.Sb8#
    • 1...Ra4
      • 2.Sb4#
      • 2.Sa5#
      • 2.Se5#
      • 2.Sxa7#
      • 2.Sb8#
    • 1...Ra5
      • 2.Sxa5#
    • 1...Rb6
      • 2.Rd4#
    • 1...Rxc6+
      • 2.Bxc6#
    • 1...Bxe3
      • 2.Rd4#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bb6
      • 2.Sa7#
    • 1...Bb8
      • 2.Rd4#
  • Tries
    • 1.Qxg2+?
      • 1...Kxe3
        • 2.Sd5#
        • 2.Bd2#
      • 1...Qxg2!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sf6#
      • 1...Qxh4
        • 2.Qxg2#
      • 1...Bxe3
        • 2.Qxe3#
      • 1...Bd4
        • 2.exd4#
      • 1...Sg4
        • 2.Qxg4#
      • 1...Sg8
        • 2.Qg4#
      • 1...Sh5
        • 2.Re8#
      • 1...Se8
        • 2.Rxe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(e);N_PINS(G)::B(J)+S(G),XR(e)
    • R(e);S_CUTB(g)::R1(K)
    • R(e);CHECK,OGATE,P_SPINR(e),XS(G)::B(J),XR(e)
    • B(g);N_GUARD,P_SPINB(g),XP(D)::R1(K)
    • B(g);N_GUARD::R1(K),XB(g)
    • B(g);N_PINS(G)::B(J)+S(G)
    • B(g);N_GUARD::R1(K)
  • Tries
    • Try
      • Q(B);CHECK,XP(a)
      • Refutation
        • Q(b);XQ(B)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • Q(b);N_GUARD,XP(F)::QAB(B),XP(a)
      • B(g);OGATE,P_SPINB(g),XP(D)::QAR1(B),XB(g)
      • B(g);OGATE::QAR(B)+P(D),XB(g)
      • S(f);N_GUARD::QAR2(B),XS(f)
      • S(f);N_GUARD::QAR2(B)
      • S(h);N_GUARD::R(K)
      • S(h);N_GUARD::R(K),XS(h)
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Developed and maintained by Brian Stephenson.
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