MESON Chess Problem Database

Problem Display
PID: 120852 (b7/1B1Qp3/1p1p4/4NP2/1r1kNK2/B1p2P2/3p4/b1RR4 w - - 0 1)

Szugyi, Gyula

Dunaujvarosi TS, 1964-1965

b7/1B1Qp3/1p1p4/4NP2/1r1kNK2/B1p2P2/3p4/b1RR4

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qxa4#
    • 1...c2
      • 2.Rxd2#
    • 1...d5
      • 2.Qxd5#
    • 1...e6
      • 2.Qxd6#
  • Tries
    • 1.Sxd2?
      • threat
        • 2.Sb3#
        • 2.Se4#
      • 1...Kc5+
        • 2.Se4#
      • 1...cxd2
        • 2.Rxd2#
      • 1...Rb2
        • 2.Sb3#
      • 1...Rb3
        • 2.Sb1#
        • 2.Sf1#
        • 2.Sxb3#
        • 2.Sdc4#
        • 2.Se4#
      • 1...c2!
    • 1.Rxc3?
      • threat
        • 2.Rxd2#
        • 2.Rd3#
      • 1...Rb2
        • 2.Rd3#
        • 2.Rc4#
      • 1...Rb3
        • 2.Rxd2#
        • 2.Rc4#
      • 1...Bxc3!
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Se4#
      • 1...Kc5+
        • 2.Se4#
      • 1...Bxb7
        • 2.Sxb7#
      • 1...exd6
        • 2.Qxd6#
      • 1...Rb5
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(d);OGATEB::QAR(J),XR(d)
    • P(c);N_GUARD::R(B),XP(b)
    • P(g);OGATE::QAR1(J),XP(g)
    • P(h);N_GUARD::QAR2(J),XP(g)
  • Tries
    • Try
      • S(E);P_PINP(g),XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • K(e);CHECK,N_SPINP(g),P_SPINP(c),P_SPINR(d),S_FLIGHT::S(E)
        • P(c);N_SPINP(g),OGATE,P_SPINP(c),XS(E)::R(B),XP(c)
        • R(d);::R(B)+S(E),DCHECK
      • Refutation
        • P(c);
    • Try
      • R(A);XP(c)
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);XR(A)
  • Actual
    • S(E);XP(g)
    • Threat
      • QAR(J)+S(E)
    • Vars
      • K(e);CHECK,N_SPINP(b),P_SPINP(c),P_SPINR(d),S_FLIGHT::S(E)
      • B(i);XB(I)::QAR(J)+S(E),XB(i)
      • P(h);OGATE,XS(E)::QAR2(J),XP(h)
      • R(d);::QAR(J)+S(E),DCHECK,XR(d)
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