MESON Chess Problem Database

Problem Display
PID: 79859 (8/qN2RPr1/8/2Pp1pQ1/2p3P1/1pPkr3/BP1n2bR/2Kn2N1 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1994

8/qN2RPr1/8/2Pp1pQ1/2p3P1/1pPkr3/BP1n2bR/2Kn2N1

#2

12 + 11

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc5
      • 2.Sxc5#
    • 1...Re1
      • 2.Qxd2#
    • 1...Rf3
      • 2.Qxd2#
    • 1...Rg3
      • 2.Qxd2#
    • 1...Rh3
      • 2.Qxd2#
    • 1...Re4
      • 2.Qxd2#
    • 1...Bf1
      • 2.Rxd2#
    • 1...Bh1
      • 2.Rxd2#
    • 1...Bf3
      • 2.Rxd2#
    • 1...Bh3
      • 2.Rxd2#
    • 1...Be4
      • 2.Rxd2#
    • 1...Sxb2
      • 2.Rxe3#
      • 2.Qxe3#
    • 1...Sf2
      • 2.Rxe3#
      • 2.Qxe3#
    • 1...Sxc3
      • 2.Qxe3#
    • 1...Sb1
      • 2.Bxb1#
    • 1...Sf1
      • 2.Bb1#
    • 1...Sf3
      • 2.Bb1#
    • 1...Se4
      • 2.Bb1#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qd4#
      • 1...Qxc5
        • 2.Sxc5#
      • 1...Sxc3
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...Re4
        • 2.Qxd2#
      • 1...Be4
        • 2.Rxd2#
      • 1...Sf3
        • 2.Bb1#
      • 1...Se4
        • 2.Bb1#
      • 1...d4
        • 2.Qxd4#
      • 1...Rxg4!
    • 1.Qxf5+?
      • 1...Be4
        • 2.Rxd2#
      • 1...Se4
        • 2.Bb1#
        • 2.Qxd5#
      • 1...Re4!
  • Keys
    • 1.Re4!
      • threat
        • 2.Rd4#
      • 1...Kxe4
        • 2.Qxf5#
      • 1...Qxc5
        • 2.Sxc5#
      • 1...Rxe4
        • 2.Qxd2#
      • 1...Bxe4
        • 2.Rxd2#
      • 1...Sxb2
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...Sxc3
        • 2.Qxe3#
      • 1...Sxe4
        • 2.Bb1#
      • 1...dxe4
        • 2.Qd8#
      • 1...fxe4
        • 2.Qxd5#
      • 1...Sf3
        • 2.Bb1#
      • 1...d4
        • 2.Rxd4#

There are these versions: 135264

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 10
  • Sets
    • Q(j);XP(H)::S(J),XQ(j)
    • R(f);OGATE::QAR1(I),XS(b)
    • B(c);OGATE::R1(E),XS(b)
    • S(a);N_GUARD,XP(F)::QAR1(I),XR(f)
    • S(b);N_GUARD::B(C),XS(b)
    • S(b);N_GUARD::B(C)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • Q(j);XP(H)::S(J),XQ(j)
        • R(f);OGATE::QAR1(I),XS(b)
        • B(c);OGATE::R1(E),XS(b)
        • S(b);N_GUARD::B(C)
        • P(h);::QAR1(I),XP(h)
      • Refutation
        • R(k);XP(G)
    • Try
      • Q(I);CHECK,XP(i)
      • Vars
        • B(c);OGATE,P_SPINB(c)::R1(E),XS(b)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • R(K);
    • Threat
      • R1(K)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(K)::QAB1(I),XP(i)
      • Q(j);XP(H)::S(J),XQ(j)
      • R(f);OGATE,SBLOCK,XR(K)::QAR1(I),XS(b)
      • B(c);OGATE,SBLOCK,XR(K)::R1(E),XS(b)
      • S(a);N_GUARD,XP(F)::QAR1(I),XR(f)
      • S(b);N_GUARD,SBLOCK,XR(K)::B(C)
      • P(h);OGATEB,SBLOCK,XR(K)::QAR(I)
      • P(i);OGATE,XR(K)::QAR2(I),XP(h)
      • S(b);N_GUARD::B(C)
      • P(h);::R1(K),XP(h)
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