MESON Chess Problem Database

Problem Display
PID: 55922 (8/K1R1Npq1/1p4bb/p2p4/r2kp3/pP4Q1/n3R1n1/1BB2r2 w - - 0 1)

Votruba, Otakar

5th Prize, Brisbane Courier, 1913

8/K1R1Npq1/1p4bb/p2p4/r2kp3/pP4Q1/n3R1n1/1BB2r2

#2

8 + 14

6388 ChessMoves 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Rxd2#
    • 1...Sxc1
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sb4
      • 2.Qc3#
    • 1...Se3
      • 2.Rd2#
  • Tries
    • 1.Bb2+?
      • 1...Sc3
        • 2.Bxc3#
        • 2.Qxc3#
      • 1...axb2!
    • 1.Be3+?
      • 1...Sxe3
        • 2.Rd2#
      • 1...Bxe3!
    • 1.Rxe4+?
      • 1...dxe4
        • 2.Qd6#
      • 1...Bxe4!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxd5#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Qe5
        • 2.Qxb6#
      • 1...Rf5
        • 2.Rxe4#
      • 1...Sc3
        • 2.Sc6#
      • 1...Sb4
        • 2.Rc4#
      • 1...Se3
        • 2.Rd2#
      • 1...Sf4
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(l);N_GUARD::R(C),XB(l)
    • S(b);N_GUARD,XB(B)::QAB1(E)
    • S(b);N_GUARD::QAB1(E),XS(b)
    • S(b);N_GUARD::QAB1(E)
    • S(c);S_CUTB(l)::R(C)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • P(d);XB(B)
    • Try
      • B(B);CHECK
      • Vars
        • S(c);XB(B)::R(C)
      • Refutation
        • B(l);XB(B)
    • Try
      • R(C);CHECK,XP(g)
      • Vars
        • P(i);S_CUTB(k),XR(C)::QAR2(E)
      • Refutation
        • B(k);XR(C)
  • Actual
    • Q(E);P_PINP(i)
    • Threat
      • QAR1(E),XP(i)
    • Vars
      • R(e);N_GUARD::R1(G),XR(e)
      • Q(n);SBLOCK::QAB(E),XP(j)
      • R(a);S_CUTB(k)::R1(C),XP(g)
      • S(b);SBLOCK::S(H)
      • S(b);S_CUTR(e)::R1(G)
      • S(c);SBLOCK,S_CUTB(l)::R(C)
      • S(c);N_GUARD,S_CUTB(l)::B(B)
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