MESON Chess Problem Database

Problem Display
PID: 93163 (2b4K/8/4pQ2/B4R2/2k4p/7r/8/NB6 w - - 0 1)

Marin y Llovet, Valentin

Tijdschrift vd NSB, 1904

2b4K/8/4pQ2/B4R2/2k4p/7r/8/NB6

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qc3#
    • 1...Rh2
      • 2.Qc3#
    • 1...Ra3
      • 2.Qxh4#
    • 1...Rb3
      • 2.Qxh4#
    • 1...Rc3
      • 2.Qxc3#
      • 2.Qxh4#
  • Tries
    • 1.Ba2+?
      • 1...Rb3
        • 2.Qc3#
      • 1...Kd3!
    • 1.Qe5?
      • threat
        • 2.Rf4#
        • 2.Qf4#
        • 2.Qe4#
        • 2.Qc5#
      • 1...Rd3
        • 2.Qc5#
      • 1...Re3
        • 2.Qc5#
      • 1...Rf3
        • 2.Qe4#
        • 2.Qc5#
      • 1...Bb7
        • 2.Qc5#
      • 1...exf5!
    • 1.Qxe6+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Bxe6!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qd4#
      • 1...Rxc3
        • 2.Qxh4#
      • 1...exf5
        • 2.Qc6#
      • 1...e5
        • 2.Qc6#
      • 1...Rd3
        • 2.Ba2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::QAR1(E)
    • R(a);N_GUARD::QAR(E),XP(c)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • R(a);P_SPINR(a)::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • DUALS(4)
      • Vars
        • R(a);::QAR1(E)
        • B(e);::QAR1(E)
      • Refutation
        • P(d);XR(D)
    • Try
      • Q(E);CHECK,XP(d)
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
      • Refutation
        • B(e);XQ(E)
  • Actual
    • B(C);
    • Threat
      • QAR1(E)
    • Vars
      • R(a);N_GUARD,SBLOCK,XB(C)::QAR(E),XP(c)
      • P(d);OGATE,XR(D)::QAR2(E)
      • P(d);OGATE::QAR2(E)
      • R(a);SBLOCK::B(B)
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