MESON Chess Problem Database

Problem Display
PID: 67102 (br1B4/2R2p2/1p3R2/Nn2kppK/5rP1/4P3/B2N4/3Q4 w - - 0 1)

Stocchi, Ottavio

3rd HM., British Chess Magazine, 1954

br1B4/2R2p2/1p3R2/Nn2kppK/5rP1/4P3/B2N4/3Q4

#2

10 + 9

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Sf3#
    • 1...Rb7
      • 2.Sc6#
    • 1...Be4
      • 2.Sdc4#
    • 1...Bc6
      • 2.Sxc6#
  • Tries
    • 1.Sdc4+?
      • 1...Ke4
        • 2.Bb1#
        • 2.Re7#
      • 1...Rxc4!
    • 1.Rxf5+?
      • 1...Kd6
        • 2.Se4#
      • 1...Rxf5!
    • 1.Rc5+?
      • 1...Bd5
        • 2.Sc6#
        • 2.Rxd5#
      • 1...bxc5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Re7#
      • 1...Kxe4
        • 2.Re7#
      • 1...Rxe4
        • 2.Rxf5#
      • 1...Bxe4
        • 2.Sc4#
      • 1...Sxc7
        • 2.Qd4#
      • 1...fxe4
        • 2.Sc4#
      • 1...Rb7
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD,SBLOCK,S_CUTB(h)::S(C)
    • R(i);S_CUTB(h)::S(F)
    • B(h);SBLOCK,S_CUTR(a)::S(C)
    • B(h);N_GUARD::S(F),XB(h)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • R(a);XS(C)
    • Try
      • R(H);CHECK,XP(d)
      • Vars
        • K(c);S_FLIGHT::QAR(A)+S(C),DCHECK
      • Refutation
        • R(a);XR(H)
    • Try
      • R(I);CHECK
      • Refutation
        • P(f);XR(I)
  • Actual
    • S(C);
    • Threat
      • R(I)
    • Vars
      • K(c);P-FLIGHT,XS(C)::R(I)
      • R(a);N_GUARD,SBLOCK,XS(C)::R1(H),XP(d)
      • B(h);SBLOCK,XS(C)::S(F)
      • S(b);N_GUARD,XR(I)::QAB1(A)
      • P(d);SBLOCK,XS(C)::S(F)
      • R(i);S_CUTB(h)::QAR1(A)
      • B(h);N_GUARD::QAR1(A),XB(h)
      • S(b);N_GUARD::QAB1(A),XS(b)
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