MESON Chess Problem Database

Problem Display
PID: 173906 (KR3b2/1NN1B3/3n4/1bnQ4/1k6/2p2q2/2p5/R7 w - - 0 1)

Gosman, Gheorghe H

2nd HM., Revista Romana de Sah, 1935

KR3b2/1NN1B3/3n4/1bnQ4/1k6/2p2q2/2p5/R7

#2

7 + 8

15202 Componist 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Qxb5#
    • 1...Sd3
      • 2.Qxb5#
    • 1...Sa4
      • 2.Qxb5#
    • 1...Sce4
      • 2.Qxb5#
    • 1...Sa6
      • 2.Qxb5#
    • 1...Se6
      • 2.Qxb5#
    • 1...Scxb7
      • 2.Qxb5#
    • 1...Sd7
      • 2.Qxb5#
  • Tries
    • 1.Sxc5?
      • threat
        • 2.S5a6#
        • 2.S7a6#
        • 2.Ra4#
      • 1...Sc4
        • 2.S7a6#
        • 2.Ra4#
        • 2.Rxb5#
      • 1...Sb7
        • 2.Sd3#
        • 2.S5a6#
        • 2.Qb3#
      • 1...Qxd5+!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Sc6#
      • 1...Qxd5+
        • 2.Sxd5#
      • 1...Scb7
        • 2.Qxb5#
      • 1...Sc4
        • 2.Sa6#
        • 2.Rxb5#
      • 1...Sdb7
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(f);OGATE,P_SPINS(g),SBLOCK::QAR1(B),XB(e)
    • S(f);OGATE,P_SPINS(g)::QAR1(B),XB(e)
    • S(f);OGATE,P_SPINS(g),XS(C)::QAR1(B),XB(e)
  • Tries
    • Try
      • S(C);P_PINB(e),P_SPINQ(B),XS(f)
      • Threat
        • DUALS(3)
      • Refutation
        • Q(c);CHECK,XQ(B)
  • Actual
    • S(C);P_PINB(e),P_SPINQ(B)
    • Threat
      • S(C)
    • Vars
      • Q(c);CHECK,XQ(B)::S(D),XQ(c)
      • S(f);N_PINQ(B),N_SPINB(e),P_SPINS(g)::QAR1(B),XB(e)
      • S(g);N_PINQ(B),N_SPINB(e),P_SPINS(f)::QAR1(B)
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Developed and maintained by Brian Stephenson.
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