MESON Chess Problem Database

Problem Display
PID: 189461 (K1R2nn1/1Q6/N1N2p2/2Pk4/2p1pP2/2p1r2b/1P6/8 w - - 0 1)

Gold, Samuel

Deutsche Schachzeitung, 1911

K1R2nn1/1Q6/N1N2p2/2Pk4/2p1pP2/2p1r2b/1P6/8

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sd4#
    • 1...Se6
      • 2.Qd7#
  • Tries
    • 1.Sab4+?
      • 1...Ke6
        • 2.Sd4#
      • 1...Kxc5!
    • 1.Scb4+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke6!
    • 1.Se7+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke6!
    • 1.Qb5?
      • threat
        • 2.Sc7#
      • 1...Se6
        • 2.Sab4#
      • 1...Ke6!
    • 1.Qb6?
      • threat
        • 2.Sc7#
      • 1...Se6
        • 2.Sab4#
      • 1...Ke6!
    • 1.Qf7+?
      • 1...Se6
        • 2.Qd7#
      • 1...Be6!
  • Keys
    • 1.b4!
      • threat
        • 2.Sc7#
      • 1...Ke6
        • 2.Sd4#
      • 1...cxb4 ep
        • 2.Qxb3#
      • 1...Se6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(f);S_FLIGHT::S(E)
    • S(h);N_GUARD,S_CUTB(c)::QAR2(F)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(f);S_FLIGHT::S(E)
      • Refutation
        • K(f);P-FLIGHT,XP(C)
    • Try
      • S(E);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(F)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(F)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • S(D)
      • Vars
        • S(h);SBLOCK::S(D)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • S(D)
      • Vars
        • S(h);SBLOCK::S(D)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h),S_CUTB(c)::QAR2(F)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • P(A);
    • Threat
      • S(D)
    • Vars
      • K(f);S_FLIGHT::S(E)
      • P(d);EP,OGATE,XP(A)::QAB(F),XP(d)
      • S(h);N_GUARD,S_CUTB(c)::QAR2(F)
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