MESON Chess Problem Database

Problem Display
PID: 4820 (2n1B3/8/4kp1B/3R1R2/4P3/1K6/4Q3/8 w - - 0 1)

Marin y Llovet, Valentin

Boys' Own Paper, 1892

2n1B3/8/4kp1B/3R1R2/4P3/1K6/4Q3/8

#2

7 + 3

3360 Simple Two-move Themes 1924
3310 2345 Chess Problems 1997
15428 Valentin Marin y Llovet - Seleccion de problemas 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Bf8?
      • 1...Sb6
        • 2.Rd6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sa7
        • 2.Rd6#
      • 1...Se7!
    • 1.Qb5?
      • threat
        • 2.Qd7#
      • 1...Ke7
        • 2.Qd7#
      • 1...Sb6!
    • 1.Qh5?
      • threat
        • 2.Qf7#
      • 1...Ke7
        • 2.Qf7#
      • 1...Sd6!
    • 1.Qh2?
      • 1...Sb6
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa7
        • 2.Qd6#
      • 1...Se7
        • 2.Rd6#
        • 2.Qd6#
      • 1...Ke7!
  • Keys
    • 1.e5!
      • threat
        • 2.exf6#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Kxf5
        • 2.e6#
      • 1...Ke7
        • 2.exf6#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Sd6
        • 2.exd6#

After Niccolo Sardotsch.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);
      • Vars
        • S(c);N_GUARD::R1(D)
        • S(c);N_GUARD::R1(D),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Vars
        • S(c);N_GUARD::QAR1(A)
        • S(c);N_GUARD::QAR1(A),XS(c)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAR(A)+P(C),XP(b)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
      • K(a);OGATE,S_FLIGHT,XR(E)::R(D)+P(C)
      • K(a);P-FLIGHT::QAR(A)+P(C)DCHECK,XP(b)
      • P(b);OGATE,P_SPINP(b),XP(C)::QAR1(A),XP(b)
      • S(c);OGATE::QAR(A)+P(C),XS(c)
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