MESON Chess Problem Database

Problem Display
PID: 96342 (b7/2p1K3/1p2pP2/4Pr2/2QPkr2/1p3p1B/2P1pR1B/3NR1n1 w - - 0 1)

Cuppini, Alessandro

Best Problems, 2003

b7/2p1K3/1p2pP2/4Pr2/2QPkr2/1p3p1B/2P1pR1B/3NR1n1

#2

11 + 11

6490 yacpdb 2009
3713 Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.d5#
    • 1...Rh4
      • 2.d5#
    • 1...Rxe5
      • 2.d5#
    • 1...Bd5
      • 2.Qd3#
  • Tries
    • 1.Kxe6?
      • threat
        • 2.Qd3#
        • 2.d5#
      • 1...Rxe5+
        • 2.dxe5#
      • 1...Bd5+
        • 2.Qxd5#
      • 1...bxc2
        • 2.d5#
      • 1...b5
        • 2.Qd3#
      • 1...Rxf6+!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Re3#
      • 1...Kxf3
        • 2.Qd3#
      • 1...Rxf3
        • 2.d5#
      • 1...Sxf3
        • 2.Rxe2#

This anticipates 276102(2003)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(f);::QAR(G)+P(H)
    • R(g);SBLOCK,XP(I)::QAR(G)+P(H)
    • B(k);SBLOCK::QAB1(G)
  • Tries
    • Try
      • K(K);P-FLIGHT,XP(i)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);CHECK,OGATE,XP(I)::QAR(G)+P(H),XR(g)
        • B(k);CHECK,N_GUARD::QAB1(G),XB(k)
        • P(c);XP(C)::QAR(G)+P(H)
        • P(h);::QAB1(G)
      • Refutation
        • R(g);CHECK,XP(J)
  • Actual
    • R(D);XP(d)
    • Threat
      • R1(D)
    • Vars
      • K(e);N_SPINP(b),S_FLIGHT,XR(D)::QAR2(G)
      • R(f);SBLOCK,XR(D)::QAR(G)+P(H)
      • S(a);N_GUARD,SBLOCK,XR(D)::R(B),XP(b)
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