MESON Chess Problem Database

Problem Display
PID: 24967 (8/8/8/1N1p4/1pNP4/1kp2Q2/1P1pBp2/R2RbK2 w - - 0 1)

Valuska, Jan

2nd Prize, UV CSTV, 1983

8/8/8/1N1p4/1pNP4/1kp2Q2/1P1pBp2/R2RbK2

#2

9 + 7

3485 Sachova skladba 1985
3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Tries
    • 1.Bd3?
      • 1...cxb2
        • 2.Sa5#
      • 1...c2
        • 2.Be2#
      • 1...dxc4!
    • 1.Ra3+?
      • 1...Kc2
        • 2.Bd3#
        • 2.Qd3#
        • 2.Qf5#
      • 1...bxa3!
    • 1.Rxd2?
      • threat
        • 2.Sa5#
      • 1...dxc4
        • 2.Bd1#
      • 1...Bxd2!
    • 1.Qxd5?
      • 1...cxb2
        • 2.Se3#
      • 1...c2
        • 2.Qf3#
      • 1...Kc2!
    • 1.Qf5?
      • 1...cxb2
        • 2.Sa5#
        • 2.Qd3#
      • 1...c2
        • 2.Qd3#
        • 2.Qh3#
        • 2.Qf3#
      • 1...dxc4!
  • Keys
    • 1.Se3!
      • 1...Kxb2
        • 2.Rdb1#
      • 1...cxb2
        • 2.Qxd5#
      • 1...c2
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);N_PINP(e)
      • Vars
        • P(e);SBLOCK,XP(D)::S(G)
        • P(e);OGATEB,SBLOCK::QAR(F)+B(E)
      • Refutation
        • P(g);XS(G)
    • Try
      • R(A);CHECK
      • Refutation
        • P(f);XR(A)
    • Try
      • R(B);XP(b)
      • Threat
        • S(G)
      • Vars
        • P(g);SBLOCK,XS(G)::B(E)
      • Refutation
        • B(a);XR(B)
    • Try
      • Q(F);N_PINP(e),XP(g)
      • Vars
        • P(e);SBLOCK,XP(D)::QAB(F)+S(G)
        • P(e);OGATEB,SBLOCK::QAR(F)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(F);N_PINP(e)
      • Refutation
        • P(g);XS(G)
  • Actual
    • S(G);N_PINP(e)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(D)::R1(B)
      • P(e);SBLOCK,XP(D)::QAB(F),XP(g)
      • P(e);SBLOCK::QAR(F)+S(G)
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