MESON Chess Problem Database

Problem Display
PID: 213703 (5b2/8/2P5/q4p2/RBrk1N2/pPpN2Qr/K3R1n1/7B w - - 0 1)

Supp, Walter

Badische Neueste Nachrichten, 1996

5b2/8/2P5/q4p2/RBrk1N2/pPpN2Qr/K3R1n1/7B

#2

10 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Bxc5#
    • 1...Rxc6
      • 2.Bc5#
    • 1...Bc5
      • 2.Qg7#
    • 1...Se1
      • 2.Se6#
    • 1...Sh4
      • 2.Se6#
  • Tries
    • 1.Bxc3+?
      • 1...Kxc3
        • 2.Rxc4#
      • 1...Qxc3!
    • 1.Bc5+?
      • 1...Bxc5
        • 2.Rxc4#
        • 2.Qg7#
      • 1...Qxc5!
    • 1.Qg7+?
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bxg7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sce6#
      • 1...Qxc5
        • 2.Bxc3#
      • 1...Rxc5
        • 2.Bxc3#
      • 1...Bxc5
        • 2.Qg7#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Se3
        • 2.Sfe6#
      • 1...Rh6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(e);::R(G)+B(H),DCHECK,XR(e)
    • R(e);XP(J)::R(G)+B(H),DCHECK
    • B(i);N_GUARD,S_CUTQ(g)::QAB(F)
    • S(a);::S(I)
  • Tries
    • Try
      • B(H);CHECK,P_PINR(e),XP(c)
      • Vars
        • K(f);N_SPINR(e),S_FLIGHT,XB(H)::R1(G),XR(e)
      • Refutation
        • Q(g);XB(H)
    • Try
      • B(H);CHECK,P_PINR(e)
      • Refutation
        • Q(g);XB(H)
    • Try
      • Q(F);CHECK
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g)::QAB1(F),XQ(g)
      • Refutation
        • B(i);XQ(F)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • Q(g);N_GUARD,SBLOCK,XS(E)::B(H),XP(c)
      • R(e);SBLOCK,XS(E)::R(G)+B(H),DCHECK,XP(c)
      • B(i);N_GUARD,XS(E)::QAB(F)
      • S(a);OGATE,XS(I)::QAR2(F),XS(a)
      • S(a);::S(I)
      • R(d);N_GUARD::QAR1(F)
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