MESON Chess Problem Database

Problem Display
PID: 256915 (8/8/8/1K2B3/3p1NN1/Qn6/R1Pk4/2Rb1B2 w - - 0 1)

Brooks, DR

Manchester Weekly Times, 1892

(First published on Fri Apr 15 1892)

8/8/8/1K2B3/3p1NN1/Qn6/R1Pk4/2Rb1B2

#2

9 + 4

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qb4#
    • 1...Bxc2
      • 2.Raxc2#
    • 1...Be2+
      • 2.c4#
    • 1...Bf3
      • 2.cxb3#
      • 2.c3#
      • 2.c4#
    • 1...Sxc1
      • 2.Qb4#
      • 2.Qa5#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Bxg4!
    • 1.Rxd1+?
      • 1...Kc3
        • 2.Se2#
        • 2.Sd5#
        • 2.Bxd4#
        • 2.Rd3#
        • 2.Qb2#
        • 2.Qb4#
        • 2.Qxb3#
      • 1...Kxd1!
    • 1.cxb3+?
      • 1...Bc2
        • 2.Raxc2#
      • 1...Ke1!
    • 1.c3+?
      • 1...Bc2
        • 2.Raxc2#
      • 1...Ke1!
    • 1.c4+?
      • 1...Bc2
        • 2.Raxc2#
      • 1...Ke1!
  • Keys
    • 1.Be2!
      • 1...Bxe2+
        • 2.c4#
      • 1...Ke1
        • 2.Rxd1#
      • 1...Kc3
        • 2.Qb4#
      • 1...Bxc2
        • 2.Raxc2#
      • 1...Sxc1
        • 2.Qb4#
        • 2.Qa5#
      • 1...Sa1
        • 2.Rxd1#
      • 1...Sa5
        • 2.Rxd1#
      • 1...Sc5
        • 2.Rxd1#
      • 1...d3
        • 2.Rxd1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,P_SPINP(d),P_SPINS(c),S_FLIGHT::QAB1(E)
    • B(a);OGATE,P_SPINB(a),XP(D)::R1(C),XB(a)
    • B(a);CHECK,N_GUARD::R(C)+P(D)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(E)
      • Vars
        • K(b);P_SPINP(d),P_SPINS(c),S_FLIGHT::QAB1(E)
      • Refutation
        • B(a);XS(G)
    • Try
      • R(A);CHECK,XB(a)
      • Refutation
        • K(b);P-FLIGHT,XR(A)
    • Try
      • P(D);CHECK,XS(c)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(C),XB(a)
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(C),XB(a)
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(C),XB(a)
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • B(a);CHECK,N_GUARD,XB(B)::R(C)+P(D)
      • K(b);N_GUARD,P_SPINB(a),S_FLIGHT::R1(A),XB(a)
      • K(b);N_GUARD,P_SPINP(d),P_SPINS(c),S_FLIGHT::QAB1(E)
      • B(a);OGATE,P_SPINB(a),XP(D)::R1(C),XB(a)
      • S(c);::R1(A),XB(a)
      • P(d);::R1(A),XB(a)
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