MESON Chess Problem Database

Problem Display
PID: 80329 (b2R3K/7B/4p3/2p1k1P1/r4p1N/r5Bp/1N2PQ1q/2b1R3 w - - 0 1)

Cuppini, Alessandro

Freie Presse, 1994

b2R3K/7B/4p3/2p1k1P1/r4p1N/r5Bp/1N2PQ1q/2b1R3

#2

10 + 10

6114 Problemschach-Jahrbuch (1994) 1995
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sd3#
    • 1...Ra2
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Rc4
      • 2.Sxc4#
    • 1...Ra5
      • 2.Sc4#
    • 1...Ra6
      • 2.Sc4#
    • 1...Ra7
      • 2.Sc4#
    • 1...fxg3
      • 2.Qf6#
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Qxf4+?
      • 1...Rxf4
        • 2.Sc4#
      • 1...Bxf4!
    • 1.e3?
      • threat
        • 2.exf4#
      • 1...Rxe3
        • 2.Sd3#
      • 1...fxg3
        • 2.Qf6#
      • 1...Re4
        • 2.Sf3#
      • 1...Be4
        • 2.Qxf4#
      • 1...Bxe3!
  • Keys
    • 1.e4!
      • threat
        • 2.Sg6#
      • 1...Rxe4
        • 2.Sc4#
      • 1...Bxe4
        • 2.Qxc5#
      • 1...Re3
        • 2.Qxf4#
      • 1...Be3
        • 2.Sf3#

Anticipated by 238036(1982)

There are these versions: 234803

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • R(c);N_GUARD::S(B)
    • R(c);N_GUARD::S(B),XR(c)
    • R(e);N_GUARD::S(B),XR(e)
    • R(e);N_GUARD::S(B)
    • P(f);N_SPINP(f),OGATE,XB(E)::QAB1(D)
    • P(g);N_GUARD,S_CUTR(e)::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK,XP(f)
      • Vars
        • R(e);P_SPINR(e),XQ(D)::S(B)
      • Refutation
        • B(a);P_SPINB(a),XQ(D)
    • Try
      • P(C);
      • Threat
        • R(A)+P(C)DCHECK,XP(f)
      • Vars
        • R(c);N_GUARD,P_SPINR(c),XP(C)::S(B)
        • P(f);N_SPINP(f),OGATE,XB(E)::QAB1(D)
        • R(e);S_CUTB(j)::S(F)
        • B(j);S_CUTR(e)::QAB1(D),XP(f)
      • Refutation
        • B(a);P_SPINB(a),XP(C)
  • Actual
    • P(C);
    • Threat
      • S(F)
    • Vars
      • R(e);N_GUARD,P_SPINR(e),XP(C)::S(B)
      • B(j);N_GUARD,P_SPINB(j),XP(C)::QAR2(D),XP(g)
      • R(c);S_CUTB(a)::QAB1(D),XP(f)
      • B(a);S_CUTR(c)::S(F)
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