MESON Chess Problem Database

Problem Display
PID: 51623 (8/p1p5/Q1P1N3/1n1k1P1p/b1N4R/2p1KP2/2P1PP2/8 w - - 0 1)

Barrow, John Hugh

Chess Amateur (The), 1922

8/p1p5/Q1P1N3/1n1k1P1p/b1N4R/2p1KP2/2P1PP2/8

#2

11 + 7

5257 Chess Problems by J H Barrow 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc2
      • 2.Qxb5#
    • 1...Bb3
      • 2.Qxb5#
    • 1...Sa3
      • 2.Rd4#
    • 1...Sd4
      • 2.Rxd4#
    • 1...Sd6
      • 2.Rd4#
  • Tries
    • 1.Kd3?
      • threat
        • 2.e4#
      • 1...Sd6
        • 2.Rd4#
      • 1...Bxc2+!
    • 1.Re4?
      • 1...Bxc2
        • 2.Qxb5#
      • 1...Sa3
        • 2.Rd4#
        • 2.Re5#
      • 1...Bb3
        • 2.Qxb5#
      • 1...Sd4
        • 2.Rxd4#
        • 2.Re5#
      • 1...Sd6
        • 2.Rd4#
        • 2.Re5#
      • 1...h4!
    • 1.Rf4?
      • 1...Bxc2
        • 2.Qxb5#
      • 1...Sa3
        • 2.Rd4#
      • 1...Bb3
        • 2.Qxb5#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sd6
        • 2.Rd4#
      • 1...h4!
  • Keys
    • 1.Kf4!
      • 1...Kxc4
        • 2.Ke5#
      • 1...Bxc2
        • 2.Qxb5#
      • 1...Bb3
        • 2.Qxb5#
      • 1...Sa3
        • 2.e4#
      • 1...Sd4
        • 2.e4#
      • 1...Sd6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD,XP(A)::QAR2(I),XS(c)
    • B(b);N_GUARD::QAR2(I),XS(c)
    • S(c);N_GUARD::R1(G)
    • S(c);N_GUARD::R1(G),XS(c)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • P(B)
      • Vars
        • S(c);N_GUARD::R1(G)
      • Refutation
        • B(b);CHECK,XP(A)
    • Try
      • R(G);
      • Vars
        • B(b);N_GUARD,XP(A)::QAR2(I),XS(c)
        • B(b);N_GUARD::QAR2(I),XS(c)
      • Refutation
        • P(e);
    • Try
      • R(G);
      • Vars
        • B(b);N_GUARD,XP(A)::QAR2(I),XS(c)
        • S(c);N_GUARD::R1(G)
        • B(b);N_GUARD::QAR2(I),XS(c)
        • S(c);N_GUARD::R1(G),XS(c)
      • Refutation
        • P(e);
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(d);P_SPINS(c),S_FLIGHT,XS(F)::R(G)+K(D)
      • B(b);N_GUARD,XP(A)::QAR2(I),XS(c)
      • B(b);N_GUARD::QAR2(I),XS(c)
      • S(c);::P(B)
      • S(c);SBLOCK::S(F)
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