MESON Chess Problem Database

Problem Display
PID: 102641 (Q6N/2B3n1/5p2/5k2/KNB2qpP/2Pr2Pn/2P1b3/4RR2 w - - 0 1)

Goldschmidt, Josef

Bulletin Ouvrier des Echecs, 1950

Q6N/2B3n1/5p2/5k2/KNB2qpP/2Pr2Pn/2P1b3/4RR2

#2

12 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qd5#
    • 1...Rxg3
      • 2.Qd5#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Bd1
      • 2.Bxd3#
      • 2.Qe4#
    • 1...Sg1
      • 2.Rxf4#
    • 1...Sg5
      • 2.Rxf4#
  • Tries
    • 1.Bxd3+?
      • 1...Bxd3
        • 2.Qd5#
      • 1...Ke6!
    • 1.Qa5+?
      • 1...Rd5
        • 2.Qxd5#
      • 1...Ke4!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se7#
      • 1...Ke4
        • 2.Bxd3#
      • 1...Ke6
        • 2.Qc8#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Re3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD,XP(D)::QAR2(K)
    • R(b);N_GUARD,XP(E)::QAR2(K)
    • R(b);N_GUARD::QAR2(K),XR(b)
    • S(c);N_GUARD::R1(B),XQ(d)
  • Tries
    • Try
      • B(H);CHECK,P_SPINS(G),XR(b)
      • Vars
        • B(a);XB(H)::QAR2(K)
      • Refutation
        • K(f);N_SPINQ(d),P_SPINB(a),S_FLIGHT
    • Try
      • Q(K);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR2(K),XR(b)
      • Refutation
        • K(f);N_SPINQ(d),P_SPINB(a),S_FLIGHT
  • Actual
    • S(G);P_SPINB(H)
    • Threat
      • S(G)
    • Vars
      • K(f);N_PINB(H),N_SPINQ(d),P_SPINB(a),S_FLIGHT::B(H),XR(b)
      • K(f);N_SPINQ(d),P_SPINB(a),S_FLIGHT::QAB(K)
      • R(b);OGATE,XS(G)::QAR2(K),XR(b)
      • R(b);N_GUARD::S(G),XR(b)
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