MESON Chess Problem Database

Problem Display
PID: 192935 (8/p1RB2K1/r1n3N1/pNPk4/8/1PPnBP2/1b6/1b6 w - - 0 1)

Prins, Hendrik

Schweizerische Schachzeitung, 1984

8/p1RB2K1/r1n3N1/pNPk4/8/1PPnBP2/1b6/1b6

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.c4#
    • 1...Ba3
      • 2.c4#
    • 1...Bxc3+
      • 2.Sxc3#
    • 1...Sde5
      • 2.Sf4#
    • 1...Sd4
      • 2.c4#
    • 1...Sce5
      • 2.Se7#
  • Tries
    • 1.Kh6?
      • threat
        • 2.c4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Sde5
        • 2.Sf4#
      • 1...Sce5!
    • 1.Kh7?
      • threat
        • 2.c4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Sce5
        • 2.Se7#
      • 1...Sde5!
    • 1.Kg8?
      • threat
        • 2.c4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Sde5
        • 2.Sf4#
      • 1...Sce5
        • 2.Se7#
      • 1...Se7+!
    • 1.Bd4?
      • threat
        • 2.c4#
      • 1...Sde5
        • 2.Sf4#
      • 1...Sce5
        • 2.Se7#
      • 1...Bxc3!
    • 1.Bxc6+?
      • 1...Ke6
        • 2.Sd4#
      • 1...Rxc6!
    • 1.Rxc6?
      • threat
        • 2.Sc7#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Rxc6!
    • 1.Rc8?
      • threat
        • 2.Sc7#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Sd4
        • 2.c4#
      • 1...Sxc5!
  • Keys
    • 1.Kf8!
      • threat
        • 2.c4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Sde5
        • 2.Sf4#
      • 1...Sce5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(b);N_PINP(B)::P(B)
    • B(b);CHECK,XP(B)::S(E),XB(b)
    • S(c);N_GUARD,N_PINP(B),SBLOCK::S(G)
    • S(g);N_PINP(B)::P(B)
    • S(g);N_GUARD,N_PINP(B),SBLOCK::S(G)
  • Tries
    • Try
      • K(J);N_SPINP(B),S_FLIGHT
      • Threat
        • P(B)
      • Vars
        • B(b);XP(B)::S(E),XB(b)
        • S(c);N_GUARD,SBLOCK::S(G)
      • Refutation
        • S(g);P_PINS(G)
    • Try
      • K(J);N_SPINP(B),P-FLIGHT
      • Threat
        • P(B)
      • Vars
        • B(b);XP(B)::S(E),XB(b)
        • S(g);N_GUARD,SBLOCK::S(G)
      • Refutation
        • S(c);P_PINS(G)
    • Try
      • K(J);N_SPINP(B),P-FLIGHT
      • Threat
        • P(B)
      • Vars
        • B(b);XP(B)::S(E),XB(b)
        • S(c);N_GUARD,SBLOCK::S(G)
        • S(g);N_GUARD,SBLOCK::S(G)
      • Refutation
        • S(g);CHECK
    • Try
      • B(C);N_SPINP(B)
      • Threat
        • P(B)
      • Vars
        • S(c);N_GUARD::S(G)
        • S(g);N_GUARD::S(G)
      • Refutation
        • B(b);P_PINB(C),XP(B)
    • Try
      • B(I);CHECK,XS(g)
      • Vars
        • K(e);S_FLIGHT::S(E)
      • Refutation
        • R(f);XB(I)
    • Try
      • R(H);XS(g)
      • Threat
        • S(E)
      • Vars
        • B(b);CHECK,XP(B)::S(E),XB(b)
      • Refutation
        • R(f);XR(H)
    • Try
      • R(H);
      • Threat
        • S(E)
      • Vars
        • B(b);CHECK,XP(B)::S(E),XB(b)
        • S(g);N_PINP(B)::P(B)
      • Refutation
        • S(c);XP(F)
  • Actual
    • K(J);N_SPINP(B),S_FLIGHT
    • Threat
      • P(B)
    • Vars
      • B(b);XP(B)::S(E),XB(b)
      • S(c);N_GUARD,SBLOCK::S(G)
      • S(g);N_GUARD,SBLOCK::S(G)
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