MESON Chess Problem Database

Problem Display
PID: 172059 (1n2Q3/3PKP1p/1prNpN1r/q2P3b/1P1P2p1/R1B1k1P1/3R2P1/8 w - - 0 1)

Apro, Laszlo

Deutsche Schachzeitung, 1979

1n2Q3/3PKP1p/1prNpN1r/q2P3b/1P1P2p1/R1B1k1P1/3R2P1/8

#2

14 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Sc4#
    • 1...Rc4
      • 2.Sxc4#
    • 1...Bg6
      • 2.Sxg4#
    • 1...Bxf7
      • 2.Sxg4#
    • 1...exd5
      • 2.Kd8#
      • 2.Kf8#
      • 2.Sf5#
    • 1...e5
      • 2.Sf5#
  • Keys
    • 1.Kxe6!
      • threat
        • 2.Kf5#
      • 1...Qxd5+
        • 2.Kxd5#
      • 1...Rxd6+
        • 2.Kxd6#
      • 1...Rxf6+
        • 2.Kxf6#
      • 1...Bxf7+
        • 2.Kxf7#
      • 1...Rxc3
        • 2.Sc4#
      • 1...Sxd7
        • 2.Kxd7#
      • 1...Rc8
        • 2.Sf5#
      • 1...Bg6
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD,P_SPINR(f),XB(D)::S(I)
    • R(f);N_GUARD::S(I),XR(f)
    • B(d);N_GUARD::S(J),XP(b)
    • B(d);N_GUARD,XP(M)::S(J),XP(b)
    • P(g);N_GUARD::S(I)
  • Actual
    • K(L);P-FLIGHT,P_SPINS(I),XP(g)
    • Threat
      • QAR(N)+K(L)
    • Vars
      • Q(c);CHECK,XP(H)::QAR(N)+K(L),XQ(c)
      • R(f);CHECK,P_PINS(J),XS(I)::QAR(N)+K(L),XR(f)
      • R(h);CHECK,XS(J)::QAR(N)+K(L),XR(h)
      • B(d);CHECK,XP(M)::QAR(N)+K(L),XB(d)
      • R(f);N_PINS(I),P_PINS(J),P_SPINR(f),XB(D)::S(I)
      • S(j);XP(K)::QAR(N)+K(L),XS(j)
      • R(f);N_PINS(I),P_PINS(J)::S(I)
      • B(d);::S(J),XP(b)
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