MESON Chess Problem Database

Problem Display
PID: 265974 (B1b5/2p5/6Q1/q1np1R2/1p2k1K1/1r4p1/2P1N1P1/3rbN2 w - - 0 1)

Wennick, Einar

Die Schwalbe, 1972

B1b5/2p5/6Q1/q1np1R2/1p2k1K1/1r4p1/2P1N1P1/3rbN2

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bxd5#
    • 1...Rdb1
      • 2.Bxd5#
    • 1...Rc1
      • 2.Bxd5#
    • 1...Rf3
      • 2.gxf3#
    • 1...Bd2
      • 2.Bxd5#
    • 1...Bxf5+
      • 2.Qxf5#
    • 1...Ba6
      • 2.Rxd5#
      • 2.Rg5#
      • 2.Rh5#
    • 1...Bb7
      • 2.Rg5#
      • 2.Rh5#
    • 1...Se6
      • 2.Rxd5#
      • 2.Rg5#
      • 2.Rh5#
    • 1...Sd7
      • 2.Rxd5#
      • 2.Rg5#
      • 2.Rh5#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qe5#
      • 1...Bxf5+
        • 2.Qxf5#
      • 1...Sd3
        • 2.Qd4#
      • 1...Bc3
        • 2.Sexg3#
      • 1...Sd7
        • 2.Rf4#
      • 1...Qa1!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qf4#
      • 1...Bxf5+
        • 2.Qxf5#
      • 1...Sd3
        • 2.Qe3#
      • 1...Rf3
        • 2.gxf3#
      • 1...Bd2
        • 2.Bxd5#
      • 1...Se6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::B(H),XP(i)
    • R(c);OGATE::P(D),XR(c)
    • B(b);S_CUTR(a)::B(H),XP(i)
    • B(k);CHECK,OGATE,P_SPINB(k),XR(F)::QAB1(G),XB(k)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • B(k);CHECK,OGATE,XR(F)::QAB1(G),XB(k)
        • S(h);S_CUTR(a)::QAR1(G)
        • B(b);N_GUARD,S_CUTR(c)::S(C),XP(d)
        • S(h);N_PINR(F)::R1(F)
      • Refutation
        • Q(g);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • B(k);CHECK,OGATE,XR(F)::QAB1(G),XB(k)
      • S(h);S_CUTR(c)::QAR1(G)
      • R(c);OGATE::P(D),XR(c)
      • B(b);S_CUTR(a)::B(H),XP(i)
      • S(h);N_PINR(F)::R1(F)
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