MESON Chess Problem Database

Problem Display
PID: 55182 (B3K3/BR1p1p2/N7/3pNp1R/p2PkP2/6P1/2PPb1P1/8 w - - 0 1)

Zigman, Matyaz

Comm., Problem TT, 1971

B3K3/BR1p1p2/N7/3pNp1R/p2PkP2/6P1/2PPb1P1/8

#2

13 + 7

56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.cxd3#
    • 1...Bf3
      • 2.gxf3#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sg5#
        • 2.Sc5#
      • 1...Bxa6
        • 2.Sg5#
      • 1...d6
        • 2.Sg5#
        • 2.Re7#
      • 1...f6
        • 2.Sc5#
      • 1...Bxf3!
    • 1.Sc4?
      • threat
        • 2.Sd6#
      • 1...dxc4
        • 2.Rxd7#
      • 1...d6
        • 2.Sxd6#
        • 2.Re7#
      • 1...Bxc4!
    • 1.Sg4?
      • threat
        • 2.Sf2#
        • 2.Sf6#
      • 1...fxg4
        • 2.Re5#
      • 1...f6
        • 2.Sf2#
        • 2.Sxf6#
      • 1...Bxg4!
    • 1.Sc6?
      • threat
        • 2.Sc5#
      • 1...dxc6
        • 2.Re7#
      • 1...d6
        • 2.Re7#
      • 1...Bxa6!
    • 1.Sxd7?
      • threat
        • 2.Sf6#
      • 1...f6
        • 2.Sxf6#
      • 1...Bb5!
    • 1.Sxf7?
      • threat
        • 2.Sg5#
        • 2.Sd6#
      • 1...d6
        • 2.Sg5#
        • 2.Sxd6#
        • 2.Re7#
      • 1...Bxh5!
    • 1.Rb3?
      • threat
        • 2.Re3#
      • 1...Bd3
        • 2.cxd3#
      • 1...axb3!
  • Keys
    • 1.Sc5+!
      • 1...Kxd4
        • 2.c3#

This is a version

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::P(A),XB(a)
    • B(a);OGATE::P(C),XB(a)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XS(I)::S(G)
        • P(g);::S(I)
      • Refutation
        • B(a);XS(G)
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • P(d);OGATEB,XS(G)::B(L)+R(K),XP(f)
      • Refutation
        • B(a);XS(G)
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATE,XS(G)::R1(H)
      • Refutation
        • B(a);XS(G)
    • Try
      • S(G);
      • Threat
        • S(I)
      • Vars
        • P(f);OGATE,XS(G)::R(K)
        • P(f);OGATE::R(K)
      • Refutation
        • B(a);XS(I)
    • Try
      • S(G);XP(f)
      • Threat
        • S(G)
      • Vars
        • P(g);::S(G),XP(g)
      • Refutation
        • B(a);P_PINS(G)
    • Try
      • S(G);XP(g)
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);P_PINS(G),XR(H)
    • Try
      • R(K);P_PINP(d)
      • Threat
        • R1(K)
      • Vars
        • B(a);OGATE::P(A),XB(a)
      • Refutation
        • P(b);XR(K)
  • Actual
    • S(I);CHECK
    • Vars
      • K(c);P-FLIGHT,XP(E)::P(A)
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