MESON Chess Problem Database

Problem Display
PID: 102926 (3R1bK1/q1N1N1B1/2P2r2/2ppn3/2Pk2p1/1r1P4/4R3/2Q4b w - - 0 1)

Visserman, Eeltje

Sachove umeni (Ceskoslovensky sach), 1973

3R1bK1/q1N1N1B1/2P2r2/2ppn3/2Pk2p1/1r1P4/4R3/2Q4b

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qe3#
    • 1...Rxd3
      • 2.Sb5#
    • 1...Rf3
      • 2.Rxd5#
    • 1...Sxd3
      • 2.Se6#
      • 2.Sf5#
    • 1...Sf3
      • 2.Rxd5#
    • 1...Sxc4
      • 2.Qxc4#
  • Tries
    • 1.Sb5+?
      • 1...Kxd3
        • 2.Re3#
        • 2.Qc2#
      • 1...Rxb5!
    • 1.Scxd5?
      • threat
        • 2.Qe3#
      • 1...Bxd5+
        • 2.Rxd5#
      • 1...Kxd3
        • 2.Sf4#
      • 1...Sxd3
        • 2.Sf5#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Rf3
        • 2.Sc7#
      • 1...Rxd3!
    • 1.Se6+?
      • 1...Kxd3
        • 2.Re3#
        • 2.Qc2#
      • 1...Rxe6!
    • 1.Sf5+?
      • 1...Kxd3
        • 2.Re3#
        • 2.Qc2#
      • 1...Rxf5!
  • Keys
    • 1.Sexd5!
      • threat
        • 2.Qe3#
      • 1...Bxd5+
        • 2.Rxd5#
      • 1...Kxd3
        • 2.Sf4#
      • 1...Rxd3
        • 2.Sb5#
      • 1...Sxd3
        • 2.Se6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Rf3
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(b);SBLOCK::QAB1(A)
    • R(b);N_GUARD,SBLOCK,XP(C)::S(F)
    • R(h);P_SPINS(g),S_CUTB(a)::R1(I),XP(f)
    • S(g);P_SPINR(h),S_CUTB(a)::R1(I),XP(f)
    • S(g);OGATE,P_SPINR(h),XP(D)::QAR1(A),XS(g)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • R(b);XS(F)
    • Try
      • S(F);XP(f)
      • Threat
        • QAB1(A)
      • Vars
        • B(a);CHECK,OGATE,P_SPINB(a),XS(F)::R1(I),XB(a)
        • K(c);P-FLIGHT,XP(C)::R(I)+S(F),DCHECK
        • S(g);P_SPINR(h),SBLOCK,XP(C)::S(G)
        • S(g);OGATE,P_SPINR(h),XP(D)::QAR1(A),XS(g)
        • R(h);N_GUARD,P_SPINS(g),S_CUTB(a)::R(I)+S(F)
      • Refutation
        • R(b);XP(C)
    • Try
      • S(F);CHECK
      • Refutation
        • R(h);P_SPINS(g),XS(F)
    • Try
      • S(G);CHECK
      • Refutation
        • R(h);P_SPINS(g),XS(G)
  • Actual
    • S(G);XP(f)
    • Threat
      • QAB1(A)
    • Vars
      • B(a);CHECK,OGATE,P_SPINB(a),XS(G)::R1(I),XB(a)
      • K(c);P-FLIGHT,XP(C)::R(I)+S(G),DCHECK
      • R(b);N_GUARD,SBLOCK,XP(C)::S(F)
      • S(g);P_SPINR(h),SBLOCK,XP(C)::S(F)
      • S(g);OGATE,P_SPINR(h),XP(D)::QAR1(A),XS(g)
      • R(h);N_GUARD,P_SPINS(g),S_CUTB(a)::R(I)+S(G)
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