MESON Chess Problem Database

Problem Display
PID: 75448 (b7/2p4K/p5pp/3QN2k/1p2p1RP/q1r5/1p2Rb2/3B2Nr w - - 0 1)

Cristoffanini, Guido

1st Prize, Nepszeva-Ungheria, 1932/I

b7/2p4K/p5pp/3QN2k/1p2p1RP/q1r5/1p2Rb2/3B2Nr

#2

8 + 13

102 Probleemblad 2007

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qf7#
  • Tries
    • 1.Sxg6+?
      • 1...Kxg4
        • 2.Re3#
      • 1...Bxd5!
    • 1.Sd7+?
      • 1...Bxd5
        • 2.Sf6#
      • 1...g5
        • 2.Sf6#
      • 1...Kxg4!
    • 1.Rg5+?
      • 1...Kxh4
        • 2.Sxg6#
      • 1...hxg5!
    • 1.Qe6?
      • threat
        • 2.Qxg6#
      • 1...g5
        • 2.Qf7#
        • 2.Qg6#
        • 2.Qxh6#
        • 2.Qe8#
      • 1...Rc6!
    • 1.Qg8?
      • threat
        • 2.Qxg6#
      • 1...g5
        • 2.Qf7#
        • 2.Qg6#
        • 2.Qe8#
      • 1...Rc6!
  • Keys
    • 1.Rxg6!
      • threat
        • 2.Rxh6#
      • 1...Kxh4
        • 2.Rxe4#
      • 1...Rxh4
        • 2.Sc6#
      • 1...Bxh4
        • 2.Re3#
      • 1...Rc6
        • 2.Sef3#
      • 1...Be3
        • 2.Rh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(j);OGATEB::QAB(F)
  • Tries
    • Try
      • S(G);CHECK,XP(j)
      • Vars
        • K(h);S_FLIGHT,XR(D)::B(A)+R(C)
      • Refutation
        • B(m);XQ(F)
    • Try
      • S(G);CHECK
      • Vars
        • B(m);XQ(F)::S(G)
        • P(j);P_SPINP(j)::S(G)
      • Refutation
        • K(h);S_FLIGHT,XR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(h);P-FLIGHT,XP(E)::S(G),XP(j)
      • Refutation
        • P(k);XR(D)
    • Try
      • Q(F);
      • Threat
        • QAB1(F),XP(j)
      • Refutation
        • R(e);
    • Try
      • Q(F);
      • Threat
        • QAB1(F),XP(j)
      • Refutation
        • R(e);
  • Actual
    • R(D);XP(j)
    • Threat
      • R1(D),XP(k)
    • Vars
      • K(h);P-FLIGHT,XP(E)::R(C),XP(g)
      • R(a);SBLOCK,XP(E)::QAR(F)+S(G)
      • B(c);SBLOCK,XP(E)::B(A)+R(C)
      • R(e);S_CUTB(m)::QAR(F)+S(G)
      • B(c);OGATE::B(A)+R(C)
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