MESON Chess Problem Database

Problem Display
PID: 96252 (Q2r3b/5N2/2r2p2/q2nB1p1/1P2kNBp/2p1PR2/2nR1K2/8 w - - 0 1)

Apro, Laszlo

Problemas, 1981

Q2r3b/5N2/2r2p2/q2nB1p1/1P2kNBp/2p1PR2/2nR1K2/8

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Rd4#
    • 1...Se1
      • 2.Rd4#
    • 1...Sa3
      • 2.Rd4#
    • 1...Scxe3
      • 2.Rd4#
    • 1...Scxb4
      • 2.Rd4#
    • 1...Sd4
      • 2.Rxd4#
    • 1...fxe5
      • 2.Sxg5#
  • Tries
    • 1.Sxd5?
      • threat
        • 2.Sxc3#
        • 2.Bf5#
      • 1...Qxb4
        • 2.Bf5#
      • 1...Qxd5
        • 2.Bf5#
      • 1...Qxa8
        • 2.Bf5#
      • 1...Rxd5
        • 2.Bf5#
      • 1...Rxa8
        • 2.Bf5#
      • 1...Sxe3
        • 2.Sxc3#
        • 2.Rd4#
        • 2.Rxe3#
      • 1...Sd4
        • 2.Sxc3#
        • 2.Rxd4#
      • 1...Qa1
        • 2.Bf5#
      • 1...Qa3
        • 2.Bf5#
      • 1...Qc5
        • 2.Bf5#
      • 1...f5
        • 2.Sxc3#
        • 2.Bxf5#
      • 1...cxd2!
  • Keys
    • 1.Se2!
      • threat
        • 2.Bf5#
      • 1...Scxe3
        • 2.Rd4#
      • 1...Sdxe3
        • 2.Sxc3#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sf4
        • 2.Sxc3#
      • 1...Se7
        • 2.Sxc3#
      • 1...f5
        • 2.Bxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::R1(A)
    • S(a);N_GUARD,XP(C)::R1(A)
    • S(a);N_GUARD,XP(E)::R1(A)
    • S(a);N_GUARD::R1(A),XS(a)
    • P(i);N_GUARD,SBLOCK,XB(H)::S(I),XP(g)
  • Tries
    • Try
      • S(F);XS(f)
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);XP(E)::B(G)
        • Q(e);XS(F)::B(G)
        • Q(e);XQ(J)::B(G)
        • R(j);XS(F)::B(G)
        • R(j);XQ(J)::B(G)
        • Q(e);::B(G)
        • Q(e);P_PINP(C)::B(G)
      • Refutation
        • P(b);XR(A)
  • Actual
    • S(F);
    • Threat
      • B(G)
    • Vars
      • S(a);N_GUARD,XP(C)::R1(A)
      • S(f);N_GUARD,P_SPINR(h),XP(C)::S(F),XP(b)
      • S(a);N_GUARD::R1(A),XS(a)
      • S(f);N_GUARD,P_SPINR(h)::S(F),XP(b)
      • P(i);::B(G),XP(i)
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