MESON Chess Problem Database

Problem Display
PID: 221780 (6B1/2p2RP1/Nprb4/1P6/3p1P2/3k4/2p5/2B1QK2 w - - 0 1)

Anonymous

The Field, 1893

(First published on Sat Jul 1 1893)

6B1/2p2RP1/Nprb4/1P6/3p1P2/3k4/2p5/2B1QK2

#2

9 + 7

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qe2#
    • 1...Rc4
      • 2.Bh7#
  • Tries
    • 1.Sb4+?
      • 1...Kc4
        • 2.Rf5#
      • 1...Bxb4!
    • 1.Re7?
      • threat
        • 2.Qd2#
        • 2.Qg3#
      • 1...Bxf4
        • 2.Sb4#
      • 1...Bb4
        • 2.Sxb4#
        • 2.Qg3#
      • 1...Be5
        • 2.Sb4#
      • 1...Bxe7!
    • 1.Qd2+?
      • 1...Kc4
        • 2.Rf5#
      • 1...Ke4!
    • 1.Qg3+?
      • 1...Kc4
        • 2.Rf5#
      • 1...Ke4!
    • 1.Qe3+?
      • 1...Kc4
        • 2.Rf5#
      • 1...dxe3!
  • Keys
    • 1.Rd7!
      • 1...Bxf4
        • 2.Sb4#
      • 1...Ba3
        • 2.Qe3#
      • 1...Rc3
        • 2.Qe2#
      • 1...Rc4
        • 2.Bh7#
      • 1...Rc5
        • 2.Sb4#
      • 1...Bb4
        • 2.Sxb4#
        • 2.Qe3#
      • 1...Bc5
        • 2.Qe3#
      • 1...Be5
        • 2.Sb4#
        • 2.Qe3#
      • 1...Be7
        • 2.Qe3#
      • 1...Bf8
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::QAB1(B)
    • R(e);SBLOCK::B(I)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::B(I)+R(G)
      • Refutation
        • B(f);XS(F)
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);N_GUARD,XP(D)::S(F)
        • B(f);N_GUARD::S(F)
      • Refutation
        • B(f);XR(G)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::B(I)+R(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::B(I)+R(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::B(I)+R(G)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • R(G);
    • Vars
      • B(f);N_GUARD,P_SPINP(c),XP(D)::S(F)
      • B(f);P_SPINP(c)::QAR1(B)
      • R(e);SBLOCK::QAB1(B)
      • R(e);SBLOCK::B(I)
      • R(e);S_CUTB(f)::S(F)
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