MESON Chess Problem Database

Problem Display
PID: 176085 (N4b2/1r5n/2k2P2/3RR1P1/4N2p/2P3P1/3P4/1n2K2B w - - 0 1)

Schafft, Willy

Schach-Echo, 1936

N4b2/1r5n/2k2P2/3RR1P1/4N2p/2P3P1/3P4/1n2K2B

#2

11 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Rxd6#
    • 1...Bh6
      • 2.Rd6#
    • 1...Bg7
      • 2.Rd6#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Sf2#
      • 1...Sxd2
        • 2.Sxd2#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sxg5
        • 2.Sxg5#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...hxg3
        • 2.Sxg3#
      • 1...Rb5
        • 2.Sc5#
      • 1...Rd7
        • 2.Sd6#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Rb4!
    • 1.Re6+?
      • 1...Bd6
        • 2.Rexd6#
      • 1...Kxd5!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Sf2#
      • 1...Sxd2
        • 2.Sxd2#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sxg5
        • 2.Sxg5#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...hxg3
        • 2.Sxg3#
      • 1...Rb5
        • 2.Sc5#
      • 1...Rd7
        • 2.Sd6#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Bd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD::R1(G),XB(f)
    • B(f);N_GUARD::R1(G)
  • Tries
    • Try
      • R(G);
      • Threat
        • B(B)+S(F)
      • Vars
        • S(a);XP(C)::B(B)+S(F),XS(a)
        • S(a);XP(D)::B(B)+S(F),XS(a)
        • S(e);XP(I)::B(B)+S(F),XS(e)
        • S(e);XP(J)::B(B)+S(F),XS(e)
        • P(b);XP(E)::B(B)+S(F),XP(b)
        • R(d);SBLOCK::B(B)+S(F)
        • B(f);N_GUARD::R1(H),XB(f)
        • B(f);N_GUARD::R1(G),XB(f)
      • Refutation
        • R(d);
    • Try
      • R(H);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(H),XB(f)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
  • Actual
    • R(G);
    • Threat
      • B(B)+S(F)
    • Vars
      • S(a);XP(C)::B(B)+S(F),XS(a)
      • S(a);XP(D)::B(B)+S(F),XS(a)
      • S(e);XP(I)::B(B)+S(F),XS(e)
      • S(e);XP(J)::B(B)+S(F),XS(e)
      • P(b);XP(E)::B(B)+S(F),XP(b)
      • R(d);SBLOCK::B(B)+S(F)
      • B(f);N_GUARD::R1(H),XB(f)
      • B(f);N_GUARD::R1(G),XB(f)
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