MESON Chess Problem Database

Problem Display
PID: 41494 (R2KB3/3R4/pBP5/1kp5/prN5/np3Q2/4P3/1n6 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize, Revista Romana de Sah, 1984

R2KB3/3R4/pBP5/1kp5/prN5/np3Q2/4P3/1n6

#2

9 + 8

3748 FIDE Album (1983-1985) 1992
4640 Chess Wizardry: The New ABC of Chess Problems 1996
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qd3#
  • Tries
    • 1.Bc7?
      • threat
        • 2.Sd6#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Rxc4
        • 2.Rb8#
      • 1...Sxc4!
    • 1.Qh5?
      • threat
        • 2.Qxc5#
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Kxc6
        • 2.Rda7#
        • 2.Rc7#
        • 2.Re7#
        • 2.Rf7#
        • 2.Rg7#
        • 2.Rh7#
        • 2.Qxc5#
      • 1...Rxc4!
    • 1.Qf2?
      • threat
        • 2.Qxc5#
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Kxc6
        • 2.Qxc5#
      • 1...Rxc4!
    • 1.Qe3?
      • threat
        • 2.Qxc5#
      • 1...Kxc4
        • 2.Qxc5#
        • 2.Qd3#
      • 1...Kxc6
        • 2.Qxc5#
      • 1...Rxc4!
    • 1.Qf5?
      • threat
        • 2.Qxc5#
      • 1...Kxc4
        • 2.Qd3#
        • 2.Qxc5#
      • 1...Kxc6
        • 2.Rda7#
        • 2.Rc7#
        • 2.Re7#
        • 2.Rf7#
        • 2.Rg7#
        • 2.Rh7#
        • 2.Qxc5#
      • 1...Rxc4!
    • 1.Qf8?
      • threat
        • 2.Qxc5#
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Kxc6
        • 2.Qxc5#
      • 1...Rxc4!
    • 1.c7?
      • threat
        • 2.Rd4#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Sxc4
        • 2.Rd6#
      • 1...Rxc4!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Sd6#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Rxc4
        • 2.Bc7#
      • 1...Sxc4
        • 2.c7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(C)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • R(e);SBLOCK,XS(C)::R(G)
      • Refutation
        • S(b);XS(C)
    • Try
      • Q(B);P_PINP(g)
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • K(f);N_SPINP(g),S_FLIGHT,XS(C)::QAR1(B),XP(g)
      • Refutation
        • R(e);XS(C)
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • K(f);S_FLIGHT,XS(C)::QAR1(B),XP(g)
        • K(f);S_FLIGHT,XP(E)::QAR1(B),XP(g)
      • Refutation
        • R(e);XS(C)
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • K(f);S_FLIGHT,XP(E)::QAR1(B),XP(g)
      • Refutation
        • R(e);XS(C)
    • Try
      • Q(B);P_PINP(g)
      • Threat
        • QAR1(B),XP(g)
      • Refutation
        • R(e);XS(C)
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • K(f);S_FLIGHT,XS(C)::QAR1(B),XP(g)
        • K(f);S_FLIGHT,XP(E)::QAR1(B),XP(g)
      • Refutation
        • R(e);XS(C)
    • Try
      • P(E);
      • Threat
        • B(I)+R(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • S(b);SBLOCK,XS(C)::B(I)+R(F)
      • Refutation
        • R(e);XS(C)
  • Actual
    • R(F);
    • Threat
      • S(C)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
      • R(e);SBLOCK,XS(C)::R(F)+B(D)
      • S(b);SBLOCK,XS(C)::B(I)+P(E)
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