MESON Chess Problem Database

Problem Display
PID: 67516 (1bR2nBB/1pq2Pr1/2Rp4/1N1k2N1/Pp3p2/8/8/2Q2K2 w - - 0 1)

Vazquez, Luis

Chess, 1948

1bR2nBB/1pq2Pr1/2Rp4/1N1k2N1/Pp3p2/8/8/2Q2K2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5
      • 2.Qc4#
    • 1...Rg6
      • 2.Qc4#
    • 1...Rxf7
      • 2.Qc4#
    • 1...Rh7
      • 2.Qc4#
    • 1...Rxg8
      • 2.Qc4#
  • Tries
    • 1.Qd2+?
      • 1...Kxc6
        • 2.Qxd6#
      • 1...Ke5!
    • 1.Qd1+?
      • 1...Kxc6
        • 2.Qxd6#
      • 1...Ke5!
  • Keys
    • 1.Qxf4!
      • threat
        • 2.Qe4#
      • 1...Kxc6
        • 2.Qxd6#
      • 1...Qxc6
        • 2.Qd4#
      • 1...Qxf7
        • 2.Qf5#
      • 1...Rxg5
        • 2.Qc4#
      • 1...Rxf7
        • 2.Qf3#
      • 1...bxc6
        • 2.Qd4#
      • 1...Qe7
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(g);XS(E)::QAB1(A)
    • R(g);::QAB1(A)
    • R(g);P_SPINR(g),XP(G)::QAB1(A)
    • R(g);XB(I)::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,P_SPINQ(f),S_FLIGHT,XR(F)::QAR1(A),XP(d)
      • Refutation
        • K(c);P-FLIGHT,P_SPINR(g)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,P_SPINQ(f),S_FLIGHT,XR(F)::QAR1(A),XP(d)
      • Refutation
        • K(c);P-FLIGHT,P_SPINR(g)
  • Actual
    • Q(A);XP(b)
    • Threat
      • QAB1(A)
    • Vars
      • K(c);P_SPINQ(f),S_FLIGHT,XR(F)::QAR1(A),XP(d)
      • Q(f);XR(F)::QAR1(A)
      • Q(f);P_PINQ(A),P_SPINQ(f),XP(G)::QAR2(A)
      • R(g);XS(E)::QAB1(A)
      • R(g);P_PINQ(A),P_SPINR(g),XP(G)::QAB(A)
      • P(e);SBLOCK,XR(F)::QAR1(A)
      • Q(f);::QAR1(A)
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