MESON Chess Problem Database

Problem Display
PID: 51824 (3K4/8/8/3Q4/6p1/3p2B1/2PrP3/R1NkN3 w - - 0 1)

Sallay, Bela Albert

HM., Magyar Sakkszovetseg, 1980

3K4/8/8/3Q4/6p1/3p2B1/2PrP3/R1NkN3

#2

8 + 4

3310 2345 Chess Problems 1997
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Sb3#
    • 1...dxe2
      • 2.Sa2#
      • 2.Sb3#
      • 2.Scd3#
  • Tries
    • 1.Sexd3?
      • 1...Kxc2
        • 2.Qb3#
      • 1...Rxc2
        • 2.Sb2#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Rxe2!
  • Keys
    • 1.Qh1!
      • 1...dxc2+
        • 2.Sed3#
      • 1...dxe2+
        • 2.Scd3#
      • 1...Rxc2
        • 2.Sf3#
      • 1...Rxe2
        • 2.Sb3#

Anticipated by 149965(1923), 262816(1952)

This is a version of 71089

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);P_SPINP(c),SBLOCK,XP(E)::R(A)+S(B)
  • Tries
    • Try
      • S(C);XP(c)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(G)
        • R(b);SBLOCK,XP(D)::QAR(G)+S(C),DCHECK
        • R(b);OGATE,P_PINQ(G),P_SPINR(b),XS(C)::QAR2(G),XR(b)
      • Refutation
        • R(b);XP(E)
  • Actual
    • Q(G);
    • Vars
      • P(c);CHECK,SBLOCK,XP(D)::QAR(G)+S(C)
      • P(c);CHECK,SBLOCK,XP(E)::R(A)+S(B)
      • R(b);SBLOCK,XP(D)::QAR(G)+S(C)
      • R(b);SBLOCK,XP(E)::R(A)+S(B)
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