MESON Chess Problem Database

Problem Display
PID: 63653 (2Q1rq2/1n1Rpbp1/8/1P1pp1p1/1p1rk3/2np1RB1/2p2PK1/8 w - - 0 1)

Hannelius, Jan Ingvar

Land og Folk, 1976

2Q1rq2/1n1Rpbp1/8/1P1pp1p1/1p1rk3/2np1RB1/2p2PK1/8

#2

7 + 15

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe7?
      • threat
        • 2.Re3#
        • 2.Qg4#
        • 2.Qf5#
      • 1...Rxc8
        • 2.Rxe5#
      • 1...Rc4
        • 2.Qg4#
      • 1...c1Q
        • 2.Qf5#
      • 1...c1B
        • 2.Qf5#
      • 1...Bh5
        • 2.Re3#
      • 1...Bg6
        • 2.Re3#
      • 1...Bg8
        • 2.Re3#
      • 1...Sd1
        • 2.Qg4#
        • 2.Qf5#
      • 1...Se2
        • 2.Re3#
        • 2.Qf5#
      • 1...Sd6
        • 2.Re3#
        • 2.Qg4#
      • 1...g4
        • 2.Re3#
        • 2.Rf4#
        • 2.Qxg4#
        • 2.Qf5#
      • 1...g6
        • 2.Re3#
        • 2.Qg4#
      • 1...Be6!
  • Keys
    • 1.Rxd5!
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Rxd5
        • 2.Qg4#
      • 1...Bxd5
        • 2.Re3#
      • 1...Sxd5
        • 2.Qf5#
      • 1...Rc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);P_PINP(h),XP(k)
      • Threat
        • DUALS(3)
      • Vars
        • R(n);N_GUARD,XQ(G)::R1(F),XP(h)
        • R(e);::QAR2(G)
        • P(a);::QAB1(G)
        • B(l);::R1(C)
      • Refutation
        • B(l);N_SPINP(h)
  • Actual
    • R(F);XP(g)
    • Threat
      • R1(F),XP(h)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XR(F)::QAB1(G)
      • R(e);SBLOCK,XR(F)::QAR2(G)
      • B(l);SBLOCK,XR(F)::R1(C)
      • S(b);SBLOCK,XR(F)::QAB1(G)
      • R(e);OGATEB::QAR2(G),XR(e)
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