MESON Chess Problem Database

Problem Display
PID: 5068 (7b/R3B1k1/4p1BN/3Np2K/1p6/1b1Qpp1p/rPr5/q5R1 w - - 0 1)

Marin y Llovet, Valentin

1st Prize, Sydney Morning Herald, 1898

7b/R3B1k1/4p1BN/3Np2K/1p6/1b1Qpp1p/rPr5/q5R1

#2

9 + 12

3360 Simple Two-move Themes 1924
81 Chess 1956
5424 Versunkene Schatze 1998

SOLUTION

  • SOUND
  • Tries
    • 1.Sc7?
      • threat
        • 2.Se8#
      • 1...Ba4
        • 2.Sxe6#
      • 1...Rxc7!
    • 1.Bxb4+?
      • 1...Rc7
        • 2.Rxc7#
      • 1...Rxa7!
    • 1.Bd6+?
      • 1...Rc7
        • 2.Rxc7#
      • 1...Rxa7!
    • 1.Qf5?
      • threat
        • 2.Bf8#
        • 2.Qxe5#
        • 2.Qf6#
        • 2.Qf7#
        • 2.Qf8#
      • 1...Qxb2
        • 2.Bf8#
        • 2.Qf6#
        • 2.Qf7#
        • 2.Qf8#
      • 1...Rc8
        • 2.Bf8#
        • 2.Qxe5#
        • 2.Qf6#
        • 2.Qf7#
      • 1...e4
        • 2.Bf8#
        • 2.Qe5#
        • 2.Qf6#
        • 2.Qf7#
        • 2.Qf8#
      • 1...exf5!
    • 1.Qd4?
      • threat
        • 2.Qxe5#
      • 1...Qxb2
        • 2.Bxc2#
      • 1...exd4!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxe5#
      • 1...Qxb2
        • 2.Bxc2#
      • 1...Rxc3
        • 2.Bb1#
      • 1...bxc3
        • 2.Ba3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • B(d);N_GUARD::S(D),XP(j)
      • Refutation
        • R(c);XS(D)
    • Try
      • B(I);CHECK,XP(h)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::R(H),XR(c)
      • Refutation
        • R(b);XR(H)
    • Try
      • B(I);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::R(H),XR(c)
      • Refutation
        • R(b);XR(H)
    • Try
      • Q(C);
      • Threat
        • DUALS(5)
      • Refutation
        • P(j);XQ(C)
    • Try
      • Q(C);P_PINP(i)
      • Threat
        • QAB(C),XP(i)
      • Vars
        • Q(a);N_GUARD,XP(B)::R(A)+B(F),XR(c)
      • Refutation
        • P(i);N_SPINP(i),XQ(C)
  • Actual
    • Q(C);P_PINP(i)
    • Threat
      • QAB(C),XP(i)
    • Vars
      • Q(a);N_GUARD,XP(B)::R(A)+B(F),XR(c)
      • R(c);N_SPINP(i),OGATE,XQ(C)::R(A)+B(F)
      • P(h);N_SPINP(i),OGATE,XQ(C)::R(H)+B(I)
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