MESON Chess Problem Database

Problem Display
PID: 174176 (2B5/3pKbp1/n4Bpb/2p5/r3k3/p2R2P1/3P2P1/5Qn1 w - - 0 1)

Buchner, Richard

Arbeiter Schachzeitung, 1926

2B5/3pKbp1/n4Bpb/2p5/r3k3/p2R2P1/3P2P1/5Qn1

#2

8 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sh3
      • 2.Qf3#
    • 1...c4
      • 2.Rd4#
  • Tries
    • 1.Bb7+?
      • 1...Bd5
        • 2.Bxd5#
      • 1...d5!
    • 1.Re3+?
      • 1...Kd5
        • 2.Bb7#
      • 1...Bxe3!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Qd3#
      • 1...Kxd5
        • 2.Bb7#
      • 1...Bxd5
        • 2.Qb1#
      • 1...Rd4
        • 2.Re5#
      • 1...Se2
        • 2.Qf3#
      • 1...Sb4
        • 2.Qc4#
      • 1...c4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • P(e);N_GUARD,S_CUTR(c)::R1(D)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • B(j);N_GUARD,P_SPINB(j)::B(H),XB(j)
      • Refutation
        • P(i);P_SPINP(i)
    • Try
      • R(D);CHECK
      • Vars
        • K(d);S_FLIGHT::B(H)
      • Refutation
        • B(h);XR(D)
  • Actual
    • R(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(D)::B(H)
      • B(j);SBLOCK,XR(D)::QAB(A)
      • R(c);SBLOCK::R1(D)
      • S(a);N_GUARD::QAB1(A)
      • S(f);S_CUTR(c)::QAR2(A)
      • P(e);N_GUARD,S_CUTR(c)::R1(D)
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