MESON Chess Problem Database

Problem Display
PID: 189586 (3Q3n/3B3p/p4P2/2p4p/1n2kP1r/2PR4/pP2b1pP/2B3K1 w - - 0 1)

Breyer, Gyula

Pesti Naplo, 1911

3Q3n/3B3p/p4P2/2p4p/1n2kP1r/2PR4/pP2b1pP/2B3K1

#2

10 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd3
      • 2.Qa8#
  • Tries
    • 1.Bc6+?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Qd5#
      • 1...Kf5!
    • 1.Re3+?
      • 1...Kd5
        • 2.Bb5#
      • 1...Kxf4!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qc4#
      • 1...Kxd3
        • 2.Bf5#
      • 1...Rxf4
        • 2.Re3#
      • 1...Bxd3
        • 2.Qxg2#
      • 1...Sxd3
        • 2.Qa8#
      • 1...Sc2
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sc6
        • 2.Qd5#
      • 1...Sf7
        • 2.Qxh7#
      • 1...c4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD,SBLOCK,XR(F)::QAB(J)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB1(J),XS(d)
        • S(d);N_GUARD,XB(I)::QAB1(J)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR(J)+B(I)
      • Refutation
        • K(e);P-FLIGHT,XP(G)
  • Actual
    • Q(J);
    • Threat
      • QAR2(J)
    • Vars
      • K(e);S_FLIGHT,XR(F)::B(I)
      • R(f);SBLOCK,XP(G)::R1(F)
      • B(b);N_GUARD,SBLOCK,XR(F)::QAB(J),XP(c)
      • S(d);N_GUARD,SBLOCK,XR(F)::QAB(J)
      • S(d);N_GUARD::QAB1(J)
      • S(d);N_GUARD::QAB1(J),XS(d)
      • S(k);N_GUARD::QAB(J),XP(j)
      • P(g);::QAR2(J),XP(g)
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Developed and maintained by Brian Stephenson.
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