MESON Chess Problem Database

Problem Display
PID: 169874 (8/1N6/8/NPpkpP2/3b4/1r4QK/B1R1R2P/1r6 w - - 0 1)

Ruiz, J

1st HM., SEPA, 1945

8/1N6/8/NPpkpP2/3b4/1r4QK/B1R1R2P/1r6

#2

10 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bxb3+?
      • 1...c4
        • 2.Bxc4#
        • 2.Qg8#
      • 1...Rxb3!
    • 1.Qxb3+?
      • 1...c4
        • 2.Qxc4#
      • 1...Rxb3+!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se7#
      • 1...Bc3
        • 2.Qg8#
      • 1...Be3
        • 2.Qxe5#
      • 1...Ba1
        • 2.Rxc5#
      • 1...Bg1
        • 2.Rxe5#
      • 1...Bb2
        • 2.Rxc5#
      • 1...Bf2
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK,N_SPINQ(E),XR(b)
      • Refutation
        • R(a);P_PINQ(E),XB(A)
    • Try
      • Q(E);CHECK,N_SPINQ(E),XR(b)
      • Vars
        • P(d);P_SPINP(d)::QAB1(E),XP(d)
      • Refutation
        • R(a);CHECK,P_SPINR(a),XQ(E)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(c);N_PINQ(E)::QAB(E)
      • B(c);N_PINQ(E)::QAR1(E),XP(f)
      • B(c);N_GUARD::R1(B),XP(d)
      • B(c);N_GUARD::R1(C),XP(f)
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