MESON Chess Problem Database

Problem Display
PID: 114163 (5K1B/3R1pr1/R2N3p/2p1kP1r/6nP/1bP2Qb1/2N2n2/8 w - - 0 1)

Stocchi, Ottavio

4th HM., Journal de Geneve, 1936

5K1B/3R1pr1/R2N3p/2p1kP1r/6nP/1bP2Qb1/2N2n2/8

#2

10 + 10

14475 Mat Plus Review 2007
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bxg7#
    • 1...Rxf5
      • 2.Qxf5#
    • 1...Bxc2
      • 2.Sc4#
      • 2.Sxf7#
    • 1...Ba4
      • 2.Sc4#
      • 2.Sxf7#
    • 1...Bc4
      • 2.Sxc4#
    • 1...c4
      • 2.Sxf7#
  • Tries
    • 1.Re7+?
      • 1...Kf6
        • 2.Se4#
        • 2.Se8#
        • 2.Bxg7#
      • 1...Be6!
    • 1.Qe4+?
      • 1...Kf6
        • 2.Se8#
        • 2.Bxg7#
        • 2.Qe7#
      • 1...Sxe4!
    • 1.Qxg3+?
      • 1...Kf6
        • 2.Bxg7#
      • 1...Kd5!
  • Keys
    • 1.c4!
      • threat
        • 2.Sxf7#
      • 1...Kf6
        • 2.Bxg7#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Bf4
        • 2.Qc3#
      • 1...Sf6
        • 2.Re7#
      • 1...f6
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT::B(J),XR(j)
    • R(g);OGATE,XP(E)::QAR1(C),XR(g)
    • B(b);N_GUARD::S(G),XB(b)
    • P(e);S_CUTB(b)::S(G),XP(i)
  • Tries
    • Try
      • R(H);CHECK
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • Q(C);CHECK
      • Refutation
        • S(a);XQ(C)
    • Try
      • Q(C);CHECK,XB(c)
      • Vars
        • K(f);S_FLIGHT::B(J),XR(j)
      • Refutation
        • K(f);N_SPINR(j),P-FLIGHT
  • Actual
    • P(B);
    • Threat
      • S(G),XP(i)
    • Vars
      • K(f);S_FLIGHT::B(J),XR(j)
      • R(g);OGATE,XP(E)::QAR1(C),XR(g)
      • B(b);XP(B)::S(G),XB(b)
      • B(c);SBLOCK::QAB(C)
      • S(d);N_SPINR(j),SBLOCK::R(H)
      • P(i);N_SPINR(j),SBLOCK::QAB(C),XB(c)
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