MESON Chess Problem Database

Problem Display
PID: 189737 (2k5/5R2/1pNpp3/1pr3p1/5pK1/8/8/q1b4Q w - - 0 1)

Marin y Llovet, Valentin

Capablanca Magazine, 1912

2k5/5R2/1pNpp3/1pr3p1/5pK1/8/8/q1b4Q

#2

4 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qh8
      • 2.Qxh8#
    • 1...Qb1
      • 2.Qh8#
    • 1...Qa2
      • 2.Qh8#
    • 1...Qa3
      • 2.Qh8#
    • 1...Qa4
      • 2.Qh8#
    • 1...Qa5
      • 2.Qh8#
    • 1...Qa6
      • 2.Qh8#
    • 1...Qa7
      • 2.Qh8#
    • 1...Qa8
      • 2.Qh8#
    • 1...Rc3
      • 2.Qh8#
    • 1...Re5
      • 2.Qh8#
    • 1...e5
      • 2.Qh8#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Qh8#
      • 1...Kb8
        • 2.Qb7#
      • 1...Kd8
        • 2.Qh8#
      • 1...Qxd4
        • 2.Qa8#
      • 1...Rc7!
    • 1.Sa7+?
      • 1...Kb8
        • 2.Qb7#
      • 1...Qxa7
        • 2.Qh8#
      • 1...Kd8!
    • 1.Qh6?
      • threat
        • 2.Qf8#
        • 2.Qxe6#
      • 1...Rxc6
        • 2.Qf8#
      • 1...Qe5
        • 2.Qf8#
      • 1...Qg7
        • 2.Qxe6#
      • 1...Qh8
        • 2.Qxe6#
        • 2.Qxh8#
      • 1...Qa2
        • 2.Qf8#
        • 2.Qh8#
      • 1...Qa7
        • 2.Qf8#
        • 2.Qh8#
      • 1...Re5
        • 2.Qf8#
        • 2.Qh8#
      • 1...e5
        • 2.Qf8#
        • 2.Qe6#
        • 2.Qh8#
      • 1...Qf6!
    • 1.Qh7?
      • threat
        • 2.Rc7#
        • 2.Rf8#
        • 2.Qg8#
      • 1...Rxc6
        • 2.Rf8#
        • 2.Qg8#
      • 1...Qf6
        • 2.Rc7#
      • 1...Qh8
        • 2.Rc7#
        • 2.Qxh8#
      • 1...Qa7
        • 2.Rf8#
        • 2.Qg8#
        • 2.Qh8#
      • 1...Rf5
        • 2.Rc7#
        • 2.Qg8#
      • 1...Qg7!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qh8#
      • 1...Kb8
        • 2.Qb7#
      • 1...Kd8
        • 2.Qh8#
      • 1...Qxe5
        • 2.Qa8#
      • 1...Rc7
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 12
  • Sets
    • Q(a);N_GUARD::QAR(A),XQ(a)
    • Q(a);N_GUARD::QAR(A)
    • R(e);S_CUTQ(a)::QAR(A)
    • P(i);S_CUTQ(a)::QAR(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR(A)
      • Vars
        • K(j);P-FLIGHT::QAR1(A)
        • K(j);P-FLIGHT::QAR(A)
        • Q(a);N_GUARD,XS(C)::QAR2(A)
      • Refutation
        • R(e);
    • Try
      • S(C);CHECK
      • Vars
        • K(j);P-FLIGHT::QAR1(A)
        • Q(a);XS(C)::QAR(A)
      • Refutation
        • K(j);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);XS(C)::QAR(A)
        • Q(a);::QAR(A)
        • Q(a);::QAB(A),XP(i)
      • Refutation
        • Q(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • Q(a);::R1(D)
      • Refutation
        • Q(a);
  • Actual
    • S(C);
    • Threat
      • QAR(A)
    • Vars
      • K(j);P-FLIGHT::QAR1(A)
      • K(j);P-FLIGHT::QAR(A)
      • Q(a);N_GUARD,XS(C)::QAR2(A)
      • R(e);SBLOCK::R(D)
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Developed and maintained by Brian Stephenson.
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