MESON Chess Problem Database

Problem Display
PID: 44796 (1BRb3r/Q3p3/NP2p3/K2P2R1/3k4/2p1rpN1/B1P2n2/5b2 w - - 0 1)

Dittrich, Stefan

Tribune de Geneve, 1984

1BRb3r/Q3p3/NP2p3/K2P2R1/3k4/2p1rpN1/B1P2n2/5b2

#2

11 + 10

3748 FIDE Album (1983-1985) 1992
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Rc4#
    • 1...Bh3
      • 2.Rc4#
    • 1...Bc4
      • 2.Rxc4#
    • 1...Bxb6+
      • 2.Qxb6#
    • 1...Bc7
      • 2.bxc7#
    • 1...Sd3
      • 2.Rc4#
    • 1...Se4
      • 2.Be5#
    • 1...exd5
      • 2.Rxd5#
  • Tries
    • 1.Sf5+?
      • 1...Ke4
        • 2.Sc5#
      • 1...exf5!
    • 1.Bd6?
      • threat
        • 2.Bc5#
      • 1...Bxb6+
        • 2.Qxb6#
      • 1...Sd3
        • 2.Rc4#
      • 1...Se4
        • 2.Be5#
      • 1...exd6!
    • 1.Bc7?
      • threat
        • 2.b7#
      • 1...Bxc7
        • 2.bxc7#
      • 1...Se4
        • 2.Be5#
      • 1...Sd3!
    • 1.Rc7?
      • threat
        • 2.b7#
      • 1...Bxc7
        • 2.bxc7#
      • 1...Sd3
        • 2.Rc4#
      • 1...Se4!
    • 1.Rxd8?
      • threat
        • 2.b7#
      • 1...Se4
        • 2.Be5#
      • 1...Sd3!
    • 1.Qc7?
      • threat
        • 2.Qc5#
      • 1...Sd3
        • 2.Qxc3#
        • 2.Qc4#
      • 1...Se4
        • 2.Qe5#
      • 1...Bxc7!
  • Keys
    • 1.Sc7!
      • threat
        • 2.b7#
      • 1...Kc5
        • 2.Sxe6#
      • 1...Bxc7
        • 2.bxc7#
      • 1...Sd3
        • 2.Sb5#
      • 1...Se4
        • 2.Sxe6#

Anticipated by 92907(1949)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::R1(K)
    • B(a);N_GUARD::R1(K),XB(a)
    • B(i);CHECK,OGATE,P_SPINB(i),XP(H)::QAB(I),XB(i)
    • B(i);::QAB(I)+P(H),XB(i)
    • S(b);S_CUTB(a)::R1(K)
    • S(b);S_CUTR(d)::B(J)
    • P(g);OGATE,XP(E)::R1(F),XP(g)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(f);P-FLIGHT::S(G)
      • Refutation
        • P(g);XS(C)
    • Try
      • B(J);
      • Threat
        • B(J)
      • Vars
        • B(i);CHECK,OGATE,P_SPINB(i),XP(H)::QAB(I),XB(i)
        • S(b);S_CUTB(a)::R1(K)
        • S(b);S_CUTR(d)::B(J)
      • Refutation
        • P(h);XB(J)
    • Try
      • B(J);N_SPINP(H)
      • Threat
        • QAB(I)+P(H)
      • Vars
        • B(i);OGATE,P_PINP(H),XB(J)::QAB(I)+P(H),XB(i)
        • S(b);S_CUTR(d)::B(J)
      • Refutation
        • S(b);
    • Try
      • R(K);N_SPINP(H)
      • Threat
        • QAB(I)+P(H)
      • Vars
        • B(i);OGATE,P_PINP(H),XR(K)::QAB(I)+P(H),XB(i)
        • S(b);S_CUTB(a)::R1(K)
      • Refutation
        • S(b);
    • Try
      • R(K);N_SPINP(H),XB(i)
      • Threat
        • QAB(I)+P(H)
      • Vars
        • S(b);S_CUTR(d)::B(J)
      • Refutation
        • S(b);
    • Try
      • Q(I);N_SPINP(H)
      • Threat
        • QAB1(I)
      • Vars
        • S(b);S_CUTR(d)::QAB1(I)
      • Refutation
        • B(i);P_PINP(H),XQ(I)
  • Actual
    • S(G);N_SPINP(H)
    • Threat
      • QAB(I)+P(H)
    • Vars
      • K(f);S_FLIGHT::R(K)+S(G),DCHECK,XP(g)
      • B(i);OGATE,P_PINP(H),XS(G)::QAB(I)+P(H),XB(i)
      • S(b);S_CUTB(a)::S(G)
      • S(b);S_CUTR(d)::S(G),XP(g)
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