MESON Chess Problem Database

Problem Display
PID: 163580 (2r2n1q/1N1pn1Q1/r3R3/3kNp2/bp3P2/bPP1K2p/B2P4/4R3 w - - 0 1)

Gross, Erwin

idee & form, 1990

2r2n1q/1N1pn1Q1/r3R3/3kNp2/bp3P2/bPP1K2p/B2P4/4R3

#2

11 + 12

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qf7#
    • 1...Ra5
      • 2.Rd6#
    • 1...Rd6
      • 2.Rxd6#
    • 1...Ra7
      • 2.Rd6#
    • 1...Raa8
      • 2.Rd6#
    • 1...Bc6
      • 2.Rd6#
    • 1...Sc6
      • 2.Rd6#
  • Tries
    • 1.bxa4+?
      • 1...Rc4
        • 2.Bxc4#
      • 1...b3!
    • 1.c4+?
      • 1...Kxe6
        • 2.Qf7#
      • 1...Rxc4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rd6#
      • 1...Kxe6
        • 2.Kd4#
      • 1...Raxc6
        • 2.Re5#
      • 1...Rcxc6
        • 2.Re5#
      • 1...Bxb3
        • 2.Bxb3#
      • 1...Sxe6
        • 2.Sxe7#
      • 1...bxc3
        • 2.bxa4#
      • 1...dxe6
        • 2.Sxe7#
      • 1...d6
        • 2.Rxd6#
      • 1...Qh6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 6
  • Sets
    • K(e);OGATEB,S_FLIGHT,XR(I)::QAB1(K)
    • R(g);N_GUARD::R1(I)
    • R(g);N_GUARD::R1(I),XR(g)
    • B(c);S_CUTR(g)::R1(I)
    • S(i);S_CUTR(g)::R1(I)
  • Tries
    • Try
      • P(D);CHECK,XB(c)
      • Vars
        • R(j);N_GUARD,P_SPINR(j)::B(B),XR(j)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • P(E);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(I)::QAB1(K)
      • Refutation
        • R(j);XP(E)
  • Actual
    • S(H);
    • Threat
      • R1(I)
    • Vars
      • K(e);S_FLIGHT,XR(I)::R(A)+K(F)
      • R(g);SBLOCK,XS(H)::R1(I)
      • R(j);SBLOCK,XS(H)::R1(I)
      • B(c);OGATE,P_SPINB(c),XP(D)::B(B),XB(c)
      • S(k);SBLOCK,XR(I)::S(H),XS(i)
      • P(d);N_GUARD,XP(E)::B(B)+P(D),XB(c)
      • P(h);SBLOCK,XR(I)::S(H),XS(i)
      • P(h);::R1(I),XP(h)
      • Q(l);N_GUARD,P_PINP(G)::QAR1(K)
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